Home / 80,944.74-111,774.24-50,781.92

Finding the Fourth Proportional to 80,944.74, 111,774.24 and 50,781.92

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Solution

The fourth proportional to 80,944.74, 111,774.24 and 50,781.92 is: 70,123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,944.74 : 111,774.24 = 50,781.92 : x
  2. Step 2: Convert to fraction form
    80,944.74/111,774.24 = 50,781.92/x
  3. Step 3: Cross multiply
    80,944.74x = 111,774.24 × 50,781.92
  4. Step 4: Simplify right side
    80,944.74x = 5,676,109,954.87
  5. Step 5: Solve for x
    x = 5,676,109,954.87/80,944.74
  6. Step 6: Final answer
    x = 70,123.27

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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.