Finding the Fourth Proportional to 61.08, 91.61 and 22.55
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Solution
The fourth proportional to 61.08, 91.61 and 22.55 is: 33.82
Step by Step Solution
- Step 1: Write the proportion equation
61.08 : 91.61 = 22.55 : x - Step 2: Convert to fraction form
61.08/91.61 = 22.55/x - Step 3: Cross multiply
61.08x = 91.61 × 22.55 - Step 4: Simplify right side
61.08x = 2,065.61 - Step 5: Solve for x
x = 2,065.61/61.08 - Step 6: Final answer
x = 33.82
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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.