Home / 71,177.28-106,764.57-21,257.52

Finding the Fourth Proportional to 71,177.28, 106,764.57 and 21,257.52

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Solution

The fourth proportional to 71,177.28, 106,764.57 and 21,257.52 is: 31,885.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,177.28 : 106,764.57 = 21,257.52 : x
  2. Step 2: Convert to fraction form
    71,177.28/106,764.57 = 21,257.52/x
  3. Step 3: Cross multiply
    71,177.28x = 106,764.57 × 21,257.52
  4. Step 4: Simplify right side
    71,177.28x = 2,269,549,982.07
  5. Step 5: Solve for x
    x = 2,269,549,982.07/71,177.28
  6. Step 6: Final answer
    x = 31,885.88

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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.