Home / 81,719.28-122,575.59-22,553.43

Finding the Fourth Proportional to 81,719.28, 122,575.59 and 22,553.43

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Solution

The fourth proportional to 81,719.28, 122,575.59 and 22,553.43 is: 33,829.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,719.28 : 122,575.59 = 22,553.43 : x
  2. Step 2: Convert to fraction form
    81,719.28/122,575.59 = 22,553.43/x
  3. Step 3: Cross multiply
    81,719.28x = 122,575.59 × 22,553.43
  4. Step 4: Simplify right side
    81,719.28x = 2,764,499,988.77
  5. Step 5: Solve for x
    x = 2,764,499,988.77/81,719.28
  6. Step 6: Final answer
    x = 33,829.23

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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.