Home / 71,680.38-107,520.93-21,760.92

Finding the Fourth Proportional to 71,680.38, 107,520.93 and 21,760.92

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Solution

The fourth proportional to 71,680.38, 107,520.93 and 21,760.92 is: 32,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,680.38 : 107,520.93 = 21,760.92 : x
  2. Step 2: Convert to fraction form
    71,680.38/107,520.93 = 21,760.92/x
  3. Step 3: Cross multiply
    71,680.38x = 107,520.93 × 21,760.92
  4. Step 4: Simplify right side
    71,680.38x = 2,339,754,356.06
  5. Step 5: Solve for x
    x = 2,339,754,356.06/71,680.38
  6. Step 6: Final answer
    x = 32,641.49

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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.