Finding the Fourth Proportional to 99,351.84, 137,105.46 and 54,639.84
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Solution
The fourth proportional to 99,351.84, 137,105.46 and 54,639.84 is: 75,402.94
Step by Step Solution
- Step 1: Write the proportion equation
99,351.84 : 137,105.46 = 54,639.84 : x - Step 2: Convert to fraction form
99,351.84/137,105.46 = 54,639.84/x - Step 3: Cross multiply
99,351.84x = 137,105.46 × 54,639.84 - Step 4: Simplify right side
99,351.84x = 7,491,420,397.53 - Step 5: Solve for x
x = 7,491,420,397.53/99,351.84 - Step 6: Final answer
x = 75,402.94
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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.