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Finding the Fourth Proportional to 57,375.92, 86,063.88 and 20,414

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Solution

The fourth proportional to 57,375.92, 86,063.88 and 20,414 is: 30,621.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,375.92 : 86,063.88 = 20,414 : x
  2. Step 2: Convert to fraction form
    57,375.92/86,063.88 = 20,414/x
  3. Step 3: Cross multiply
    57,375.92x = 86,063.88 × 20,414
  4. Step 4: Simplify right side
    57,375.92x = 1,756,908,046.32
  5. Step 5: Solve for x
    x = 1,756,908,046.32/57,375.92
  6. Step 6: Final answer
    x = 30,621.00

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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.