Question

What is 54 is 75% of

Answer 1

First put 54 over X in a fraction. 54/x 
Then put 75 over 100. 75/100 
Then you cross multiply. 75(x)= 54(100) 
Simplify. 75x = 5400 
Divide. x=72 
Your answer is 72 

Answer 2

We set up a proportion: 54/?= 75/100

Cross multiply: 75*?= 54*100
⇒ ?= 54*100/75= 72

54 is 75% of 72.