Home / 71,865.15-99,176.90-40,034.04

Finding the Fourth Proportional to 71,865.15, 99,176.90 and 40,034.04

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Solution

The fourth proportional to 71,865.15, 99,176.90 and 40,034.04 is: 55,248.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,865.15 : 99,176.90 = 40,034.04 : x
  2. Step 2: Convert to fraction form
    71,865.15/99,176.90 = 40,034.04/x
  3. Step 3: Cross multiply
    71,865.15x = 99,176.90 × 40,034.04
  4. Step 4: Simplify right side
    71,865.15x = 3,970,451,981.68
  5. Step 5: Solve for x
    x = 3,970,451,981.68/71,865.15
  6. Step 6: Final answer
    x = 55,248.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.