Home / 81,003.20-121,489.14-24,829.70

Finding the Fourth Proportional to 81,003.20, 121,489.14 and 24,829.70

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Solution

The fourth proportional to 81,003.20, 121,489.14 and 24,829.70 is: 37,239.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,003.20 : 121,489.14 = 24,829.70 : x
  2. Step 2: Convert to fraction form
    81,003.20/121,489.14 = 24,829.70/x
  3. Step 3: Cross multiply
    81,003.20x = 121,489.14 × 24,829.70
  4. Step 4: Simplify right side
    81,003.20x = 3,016,538,899.46
  5. Step 5: Solve for x
    x = 3,016,538,899.46/81,003.20
  6. Step 6: Final answer
    x = 37,239.75

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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.