There are approximately 4 lbs of muscle for every 5 lbs of body weight of a certain animal. For a 110-lb animal, how much of the weight is muscle?

Question

There are ____ lbs of muscle

Answer 1

A proportion problem where A, B and C are known:
if A : B
then
x? : C
Answer:
x = A*C/B

Now for
4 lbs of muscles : 5 lbs of body weight
x lbs of muscles : 110 lbs of body weight
What is x?