Finding the Fourth Proportional to 88,915.18, 122,747.52 and 68,726.44
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Solution
The fourth proportional to 88,915.18, 122,747.52 and 68,726.44 is: 94,876.94
Step by Step Solution
- Step 1: Write the proportion equation
88,915.18 : 122,747.52 = 68,726.44 : x - Step 2: Convert to fraction form
88,915.18/122,747.52 = 68,726.44/x - Step 3: Cross multiply
88,915.18x = 122,747.52 × 68,726.44 - Step 4: Simplify right side
88,915.18x = 8,436,000,068.43 - Step 5: Solve for x
x = 8,436,000,068.43/88,915.18 - Step 6: Final answer
x = 94,876.94
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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.