Home / 57,869.92-86,634-43,143.52

Finding the Fourth Proportional to 57,869.92, 86,634 and 43,143.52

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Solution

The fourth proportional to 57,869.92, 86,634 and 43,143.52 is: 64,587.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,869.92 : 86,634 = 43,143.52 : x
  2. Step 2: Convert to fraction form
    57,869.92/86,634 = 43,143.52/x
  3. Step 3: Cross multiply
    57,869.92x = 86,634 × 43,143.52
  4. Step 4: Simplify right side
    57,869.92x = 3,737,695,711.68
  5. Step 5: Solve for x
    x = 3,737,695,711.68/57,869.92
  6. Step 6: Final answer
    x = 64,587.88

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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.