Finding the Fourth Proportional to 61.11, 91.22 and 60.96
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Solution
The fourth proportional to 61.11, 91.22 and 60.96 is: 90.99
Step by Step Solution
- Step 1: Write the proportion equation
61.11 : 91.22 = 60.96 : x - Step 2: Convert to fraction form
61.11/91.22 = 60.96/x - Step 3: Cross multiply
61.11x = 91.22 × 60.96 - Step 4: Simplify right side
61.11x = 5,560.47 - Step 5: Solve for x
x = 5,560.47/61.11 - Step 6: Final answer
x = 90.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.