Finding the Fourth Proportional to 60.91, 91.24 and 58.09
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Solution
The fourth proportional to 60.91, 91.24 and 58.09 is: 87.02
Step by Step Solution
- Step 1: Write the proportion equation
60.91 : 91.24 = 58.09 : x - Step 2: Convert to fraction form
60.91/91.24 = 58.09/x - Step 3: Cross multiply
60.91x = 91.24 × 58.09 - Step 4: Simplify right side
60.91x = 5,300.27 - Step 5: Solve for x
x = 5,300.27/60.91 - Step 6: Final answer
x = 87.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.