Finding the Fourth Proportional to 60.62, 91.31 and 58.09
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Solution
The fourth proportional to 60.62, 91.31 and 58.09 is: 87.50
Step by Step Solution
- Step 1: Write the proportion equation
60.62 : 91.31 = 58.09 : x - Step 2: Convert to fraction form
60.62/91.31 = 58.09/x - Step 3: Cross multiply
60.62x = 91.31 × 58.09 - Step 4: Simplify right side
60.62x = 5,304.20 - Step 5: Solve for x
x = 5,304.20/60.62 - Step 6: Final answer
x = 87.50
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.