Home / 57,755.76-86,585.04-28,158.36

Finding the Fourth Proportional to 57,755.76, 86,585.04 and 28,158.36

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Solution

The fourth proportional to 57,755.76, 86,585.04 and 28,158.36 is: 42,213.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,755.76 : 86,585.04 = 28,158.36 : x
  2. Step 2: Convert to fraction form
    57,755.76/86,585.04 = 28,158.36/x
  3. Step 3: Cross multiply
    57,755.76x = 86,585.04 × 28,158.36
  4. Step 4: Simplify right side
    57,755.76x = 2,438,092,726.93
  5. Step 5: Solve for x
    x = 2,438,092,726.93/57,755.76
  6. Step 6: Final answer
    x = 42,213.85

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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.