Home / 80,601.80-111,211.96-50,002.42

Finding the Fourth Proportional to 80,601.80, 111,211.96 and 50,002.42

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Solution

The fourth proportional to 80,601.80, 111,211.96 and 50,002.42 is: 68,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,601.80 : 111,211.96 = 50,002.42 : x
  2. Step 2: Convert to fraction form
    80,601.80/111,211.96 = 50,002.42/x
  3. Step 3: Cross multiply
    80,601.80x = 111,211.96 × 50,002.42
  4. Step 4: Simplify right side
    80,601.80x = 5,560,866,882.93
  5. Step 5: Solve for x
    x = 5,560,866,882.93/80,601.80
  6. Step 6: Final answer
    x = 68,991.85

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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.