Finding the Fourth Proportional to 87,520.68, 120,773.22 and 51,702.12
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Solution
The fourth proportional to 87,520.68, 120,773.22 and 51,702.12 is: 71,345.78
Step by Step Solution
- Step 1: Write the proportion equation
87,520.68 : 120,773.22 = 51,702.12 : x - Step 2: Convert to fraction form
87,520.68/120,773.22 = 51,702.12/x - Step 3: Cross multiply
87,520.68x = 120,773.22 × 51,702.12 - Step 4: Simplify right side
87,520.68x = 6,244,231,513.23 - Step 5: Solve for x
x = 6,244,231,513.23/87,520.68 - Step 6: Final answer
x = 71,345.78
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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.