Finding the Fourth Proportional to 61.29, 91.94 and 58.05
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Solution
The fourth proportional to 61.29, 91.94 and 58.05 is: 87.08
Step by Step Solution
- Step 1: Write the proportion equation
61.29 : 91.94 = 58.05 : x - Step 2: Convert to fraction form
61.29/91.94 = 58.05/x - Step 3: Cross multiply
61.29x = 91.94 × 58.05 - Step 4: Simplify right side
61.29x = 5,336.83 - Step 5: Solve for x
x = 5,336.83/61.29 - Step 6: Final answer
x = 87.08
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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.