Finding the Fourth Proportional to 88,269.21, 132,329.17 and 38,311.75
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Solution
The fourth proportional to 88,269.21, 132,329.17 and 38,311.75 is: 57,435.23
Step by Step Solution
- Step 1: Write the proportion equation
88,269.21 : 132,329.17 = 38,311.75 : x - Step 2: Convert to fraction form
88,269.21/132,329.17 = 38,311.75/x - Step 3: Cross multiply
88,269.21x = 132,329.17 × 38,311.75 - Step 4: Simplify right side
88,269.21x = 5,069,762,078.75 - Step 5: Solve for x
x = 5,069,762,078.75/88,269.21 - Step 6: Final answer
x = 57,435.23
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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.