Home / 89,811.28-123,947.92-51,576.14

Finding the Fourth Proportional to 89,811.28, 123,947.92 and 51,576.14

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Solution

The fourth proportional to 89,811.28, 123,947.92 and 51,576.14 is: 71,179.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,811.28 : 123,947.92 = 51,576.14 : x
  2. Step 2: Convert to fraction form
    89,811.28/123,947.92 = 51,576.14/x
  3. Step 3: Cross multiply
    89,811.28x = 123,947.92 × 51,576.14
  4. Step 4: Simplify right side
    89,811.28x = 6,392,755,648.97
  5. Step 5: Solve for x
    x = 6,392,755,648.97/89,811.28
  6. Step 6: Final answer
    x = 71,179.87

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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.