Finding the Fourth Proportional to 88.70, 132.84 and 47.99
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Solution
The fourth proportional to 88.70, 132.84 and 47.99 is: 71.88
Step by Step Solution
- Step 1: Write the proportion equation
88.70 : 132.84 = 47.99 : x - Step 2: Convert to fraction form
88.70/132.84 = 47.99/x - Step 3: Cross multiply
88.70x = 132.84 × 47.99 - Step 4: Simplify right side
88.70x = 6,375.32 - Step 5: Solve for x
x = 6,375.32/88.70 - Step 6: Final answer
x = 71.88
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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.