Finding the Fourth Proportional to 83,915.62, 125,843.19 and 28,498.66
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Solution
The fourth proportional to 83,915.62, 125,843.19 and 28,498.66 is: 42,737.72
Step by Step Solution
- Step 1: Write the proportion equation
83,915.62 : 125,843.19 = 28,498.66 : x - Step 2: Convert to fraction form
83,915.62/125,843.19 = 28,498.66/x - Step 3: Cross multiply
83,915.62x = 125,843.19 × 28,498.66 - Step 4: Simplify right side
83,915.62x = 3,586,362,285.13 - Step 5: Solve for x
x = 3,586,362,285.13/83,915.62 - Step 6: Final answer
x = 42,737.72
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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.