Home / 82,534.60-123,844.11-39,306.45

Finding the Fourth Proportional to 82,534.60, 123,844.11 and 39,306.45

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Solution

The fourth proportional to 82,534.60, 123,844.11 and 39,306.45 is: 58,979.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,534.60 : 123,844.11 = 39,306.45 : x
  2. Step 2: Convert to fraction form
    82,534.60/123,844.11 = 39,306.45/x
  3. Step 3: Cross multiply
    82,534.60x = 123,844.11 × 39,306.45
  4. Step 4: Simplify right side
    82,534.60x = 4,867,872,317.51
  5. Step 5: Solve for x
    x = 4,867,872,317.51/82,534.60
  6. Step 6: Final answer
    x = 58,979.78

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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.