55 is 76.39% of 72.
Step 1: Translate the words into an equation.
55 | is | what percent | of | 72 |
55 | = | x | $ \cdot $ | 72 |
Step 2: Solve for $ x $.
$$ \begin{aligned} 55 &= x \cdot 72 \\[1.2 em] 72 \cdot x &= 55 \\[1.2 em] x &= \dfrac{ 55 }{ 72 } \\[1.2 em] x &= 0.7639 \end{aligned} $$Step 3: Express $ x $ as a percentage.
$$ x = 0.7639 = 0.7639 ~~\cdot~~ 100 \% = 76.39 \% $$