Finding the Fourth Proportional to 88,916.18, 122,748.90 and 68,727.44
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Solution
The fourth proportional to 88,916.18, 122,748.90 and 68,727.44 is: 94,878.32
Step by Step Solution
- Step 1: Write the proportion equation
88,916.18 : 122,748.90 = 68,727.44 : x - Step 2: Convert to fraction form
88,916.18/122,748.90 = 68,727.44/x - Step 3: Cross multiply
88,916.18x = 122,748.90 × 68,727.44 - Step 4: Simplify right side
88,916.18x = 8,436,217,659.82 - Step 5: Solve for x
x = 8,436,217,659.82/88,916.18 - Step 6: Final answer
x = 94,878.32
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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.