Finding the Fourth Proportional to 88,508.75, 122,147.12 and 66,665.87
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Solution
The fourth proportional to 88,508.75, 122,147.12 and 66,665.87 is: 92,002.70
Step by Step Solution
- Step 1: Write the proportion equation
88,508.75 : 122,147.12 = 66,665.87 : x - Step 2: Convert to fraction form
88,508.75/122,147.12 = 66,665.87/x - Step 3: Cross multiply
88,508.75x = 122,147.12 × 66,665.87 - Step 4: Simplify right side
88,508.75x = 8,143,043,689.47 - Step 5: Solve for x
x = 8,143,043,689.47/88,508.75 - Step 6: Final answer
x = 92,002.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.