Finding the Fourth Proportional to 68,753.17, 103,129.84 and 18,833.70
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Solution
The fourth proportional to 68,753.17, 103,129.84 and 18,833.70 is: 28,250.57
Step by Step Solution
- Step 1: Write the proportion equation
68,753.17 : 103,129.84 = 18,833.70 : x - Step 2: Convert to fraction form
68,753.17/103,129.84 = 18,833.70/x - Step 3: Cross multiply
68,753.17x = 103,129.84 × 18,833.70 - Step 4: Simplify right side
68,753.17x = 1,942,316,467.61 - Step 5: Solve for x
x = 1,942,316,467.61/68,753.17 - Step 6: Final answer
x = 28,250.57
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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.