The volume \( V \) of a cone is given by the formula:
\[ V = \frac{1}{3} \pi r^2 h \]
where \( r \) is the radius and \( h \) is the height of the cone. Given that the volume of the cone is \( 27 , \text{cm}^3 \), we can write:
\[ \frac{1}{3} \pi r^2 h = 27 \]
Now, the volume \( V \) of a cylinder with the same radius and height is given by the formula:
\[ V = \pi r^2 h \]
To find the volume of the cylinder, we can relate it to the volume of the cone. Since the volume of a cylinder is three times the volume of a cone with the same base and height, we have:
\[ V_{\text{cylinder}} = 3 \times V_{\text{cone}} \]
Substituting the volume of the cone:
\[ V_{\text{cylinder}} = 3 \times 27 = 81 , \text{cm}^3 \]
Thus, the volume of the cylinder is:
\[ \boxed{81 , \text{cm}^3} \]