Finding the Fourth Proportional to 97.91, 135.09 and 62.87
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Solution
The fourth proportional to 97.91, 135.09 and 62.87 is: 86.75
Step by Step Solution
- Step 1: Write the proportion equation
97.91 : 135.09 = 62.87 : x - Step 2: Convert to fraction form
97.91/135.09 = 62.87/x - Step 3: Cross multiply
97.91x = 135.09 × 62.87 - Step 4: Simplify right side
97.91x = 8,492.79 - Step 5: Solve for x
x = 8,492.79/97.91 - Step 6: Final answer
x = 86.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.