To find the area of the base of the box (rectangular prism), we can use the formula for the volume of a rectangular prism, which is:
\[ \text{Volume} = \text{Area of the Base} \times \text{Height} \]
We know the volume is 50 cubic feet and the height is 4 feet. Let's denote the area of the base as \(A\). The equation can be set up as follows:
\[ 50 = A \times 4 \]
To find \(A\), we divide both sides of the equation by 4:
\[ A = \frac{50}{4} = 12.5 \text{ ft}^2 \]
Thus, the area of the base is 12.5 ft².