Home / 71,944.20-99,284.10-40,112.04

Finding the Fourth Proportional to 71,944.20, 99,284.10 and 40,112.04

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Solution

The fourth proportional to 71,944.20, 99,284.10 and 40,112.04 is: 55,355.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,944.20 : 99,284.10 = 40,112.04 : x
  2. Step 2: Convert to fraction form
    71,944.20/99,284.10 = 40,112.04/x
  3. Step 3: Cross multiply
    71,944.20x = 99,284.10 × 40,112.04
  4. Step 4: Simplify right side
    71,944.20x = 3,982,487,790.56
  5. Step 5: Solve for x
    x = 3,982,487,790.56/71,944.20
  6. Step 6: Final answer
    x = 55,355.23

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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.