Finding the Fourth Proportional to 67.76, 101.52 and 58.70
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Solution
The fourth proportional to 67.76, 101.52 and 58.70 is: 87.95
Step by Step Solution
- Step 1: Write the proportion equation
67.76 : 101.52 = 58.70 : x - Step 2: Convert to fraction form
67.76/101.52 = 58.70/x - Step 3: Cross multiply
67.76x = 101.52 × 58.70 - Step 4: Simplify right side
67.76x = 5,959.22 - Step 5: Solve for x
x = 5,959.22/67.76 - Step 6: Final answer
x = 87.95
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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.