Home / 91,629.43-137,348.19-38,351.92

Finding the Fourth Proportional to 91,629.43, 137,348.19 and 38,351.92

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Solution

The fourth proportional to 91,629.43, 137,348.19 and 38,351.92 is: 57,487.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,629.43 : 137,348.19 = 38,351.92 : x
  2. Step 2: Convert to fraction form
    91,629.43/137,348.19 = 38,351.92/x
  3. Step 3: Cross multiply
    91,629.43x = 137,348.19 × 38,351.92
  4. Step 4: Simplify right side
    91,629.43x = 5,267,566,795.02
  5. Step 5: Solve for x
    x = 5,267,566,795.02/91,629.43
  6. Step 6: Final answer
    x = 57,487.72

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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.