Home / 81,469.85-112,426.46-45,171.11

Finding the Fourth Proportional to 81,469.85, 112,426.46 and 45,171.11

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Solution

The fourth proportional to 81,469.85, 112,426.46 and 45,171.11 is: 62,335.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,469.85 : 112,426.46 = 45,171.11 : x
  2. Step 2: Convert to fraction form
    81,469.85/112,426.46 = 45,171.11/x
  3. Step 3: Cross multiply
    81,469.85x = 112,426.46 × 45,171.11
  4. Step 4: Simplify right side
    81,469.85x = 5,078,428,470.26
  5. Step 5: Solve for x
    x = 5,078,428,470.26/81,469.85
  6. Step 6: Final answer
    x = 62,335.07

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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.