Home / 80,601.67-111,211.78-50,002.29

Finding the Fourth Proportional to 80,601.67, 111,211.78 and 50,002.29

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Solution

The fourth proportional to 80,601.67, 111,211.78 and 50,002.29 is: 68,991.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,601.67 : 111,211.78 = 50,002.29 : x
  2. Step 2: Convert to fraction form
    80,601.67/111,211.78 = 50,002.29/x
  3. Step 3: Cross multiply
    80,601.67x = 111,211.78 × 50,002.29
  4. Step 4: Simplify right side
    80,601.67x = 5,560,844,154.52
  5. Step 5: Solve for x
    x = 5,560,844,154.52/80,601.67
  6. Step 6: Final answer
    x = 68,991.68

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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.