Home / 81,789.18-122,683.56-22,624.80

Finding the Fourth Proportional to 81,789.18, 122,683.56 and 22,624.80

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Solution

The fourth proportional to 81,789.18, 122,683.56 and 22,624.80 is: 33,937.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,789.18 : 122,683.56 = 22,624.80 : x
  2. Step 2: Convert to fraction form
    81,789.18/122,683.56 = 22,624.80/x
  3. Step 3: Cross multiply
    81,789.18x = 122,683.56 × 22,624.80
  4. Step 4: Simplify right side
    81,789.18x = 2,775,691,008.29
  5. Step 5: Solve for x
    x = 2,775,691,008.29/81,789.18
  6. Step 6: Final answer
    x = 33,937.14

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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.