Home / 81,751.20-122,641.38-22,585.56

Finding the Fourth Proportional to 81,751.20, 122,641.38 and 22,585.56

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Solution

The fourth proportional to 81,751.20, 122,641.38 and 22,585.56 is: 33,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,751.20 : 122,641.38 = 22,585.56 : x
  2. Step 2: Convert to fraction form
    81,751.20/122,641.38 = 22,585.56/x
  3. Step 3: Cross multiply
    81,751.20x = 122,641.38 × 22,585.56
  4. Step 4: Simplify right side
    81,751.20x = 2,769,924,246.47
  5. Step 5: Solve for x
    x = 2,769,924,246.47/81,751.20
  6. Step 6: Final answer
    x = 33,882.37

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1.5x scale

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.