Home / 57,129.72-85,729.92-27,550.56

Finding the Fourth Proportional to 57,129.72, 85,729.92 and 27,550.56

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Solution

The fourth proportional to 57,129.72, 85,729.92 and 27,550.56 is: 41,342.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,129.72 : 85,729.92 = 27,550.56 : x
  2. Step 2: Convert to fraction form
    57,129.72/85,729.92 = 27,550.56/x
  3. Step 3: Cross multiply
    57,129.72x = 85,729.92 × 27,550.56
  4. Step 4: Simplify right side
    57,129.72x = 2,361,907,304.76
  5. Step 5: Solve for x
    x = 2,361,907,304.76/57,129.72
  6. Step 6: Final answer
    x = 41,342.88

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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.