Home / 71,944.20-99,283.11-40,115.11

Finding the Fourth Proportional to 71,944.20, 99,283.11 and 40,115.11

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Solution

The fourth proportional to 71,944.20, 99,283.11 and 40,115.11 is: 55,358.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,944.20 : 99,283.11 = 40,115.11 : x
  2. Step 2: Convert to fraction form
    71,944.20/99,283.11 = 40,115.11/x
  3. Step 3: Cross multiply
    71,944.20x = 99,283.11 × 40,115.11
  4. Step 4: Simplify right side
    71,944.20x = 3,982,752,878.79
  5. Step 5: Solve for x
    x = 3,982,752,878.79/71,944.20
  6. Step 6: Final answer
    x = 55,358.92

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1.5x scale

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.