Home / 71,923.20-99,255.68-40,091.52

Finding the Fourth Proportional to 71,923.20, 99,255.68 and 40,091.52

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Solution

The fourth proportional to 71,923.20, 99,255.68 and 40,091.52 is: 55,327.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,923.20 : 99,255.68 = 40,091.52 : x
  2. Step 2: Convert to fraction form
    71,923.20/99,255.68 = 40,091.52/x
  3. Step 3: Cross multiply
    71,923.20x = 99,255.68 × 40,091.52
  4. Step 4: Simplify right side
    71,923.20x = 3,979,311,079.83
  5. Step 5: Solve for x
    x = 3,979,311,079.83/71,923.20
  6. Step 6: Final answer
    x = 55,327.23

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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.