Finding the Fourth Proportional to 88,915.68, 122,748.21 and 68,726.94
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Solution
The fourth proportional to 88,915.68, 122,748.21 and 68,726.94 is: 94,877.63
Step by Step Solution
- Step 1: Write the proportion equation
88,915.68 : 122,748.21 = 68,726.94 : x - Step 2: Convert to fraction form
88,915.68/122,748.21 = 68,726.94/x - Step 3: Cross multiply
88,915.68x = 122,748.21 × 68,726.94 - Step 4: Simplify right side
88,915.68x = 8,436,108,863.78 - Step 5: Solve for x
x = 8,436,108,863.78/88,915.68 - Step 6: Final answer
x = 94,877.63
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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.