Home / 81,169.43-121,754.14-22,003.56

Finding the Fourth Proportional to 81,169.43, 121,754.14 and 22,003.56

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Solution

The fourth proportional to 81,169.43, 121,754.14 and 22,003.56 is: 33,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,169.43 : 121,754.14 = 22,003.56 : x
  2. Step 2: Convert to fraction form
    81,169.43/121,754.14 = 22,003.56/x
  3. Step 3: Cross multiply
    81,169.43x = 121,754.14 × 22,003.56
  4. Step 4: Simplify right side
    81,169.43x = 2,679,024,469.73
  5. Step 5: Solve for x
    x = 2,679,024,469.73/81,169.43
  6. Step 6: Final answer
    x = 33,005.34

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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.