Home / 81,984.30-122,976.45-29,399.10

Finding the Fourth Proportional to 81,984.30, 122,976.45 and 29,399.10

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Solution

The fourth proportional to 81,984.30, 122,976.45 and 29,399.10 is: 44,098.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,984.30 : 122,976.45 = 29,399.10 : x
  2. Step 2: Convert to fraction form
    81,984.30/122,976.45 = 29,399.10/x
  3. Step 3: Cross multiply
    81,984.30x = 122,976.45 × 29,399.10
  4. Step 4: Simplify right side
    81,984.30x = 3,615,396,951.20
  5. Step 5: Solve for x
    x = 3,615,396,951.20/81,984.30
  6. Step 6: Final answer
    x = 44,098.65

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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.