Finding the Fourth Proportional to 70.56, 97.32 and 54.99
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Solution
The fourth proportional to 70.56, 97.32 and 54.99 is: 75.85
Step by Step Solution
- Step 1: Write the proportion equation
70.56 : 97.32 = 54.99 : x - Step 2: Convert to fraction form
70.56/97.32 = 54.99/x - Step 3: Cross multiply
70.56x = 97.32 × 54.99 - Step 4: Simplify right side
70.56x = 5,351.59 - Step 5: Solve for x
x = 5,351.59/70.56 - Step 6: Final answer
x = 75.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.