Finding the Fourth Proportional to 68,187.92, 102,306.99 and 28,740.92
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Solution
The fourth proportional to 68,187.92, 102,306.99 and 28,740.92 is: 43,121.96
Step by Step Solution
- Step 1: Write the proportion equation
68,187.92 : 102,306.99 = 28,740.92 : x - Step 2: Convert to fraction form
68,187.92/102,306.99 = 28,740.92/x - Step 3: Cross multiply
68,187.92x = 102,306.99 × 28,740.92 - Step 4: Simplify right side
68,187.92x = 2,940,397,015.03 - Step 5: Solve for x
x = 2,940,397,015.03/68,187.92 - Step 6: Final answer
x = 43,121.96
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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.