Home / 80,389.14-120,583.72-27,769.92

Finding the Fourth Proportional to 80,389.14, 120,583.72 and 27,769.92

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Solution

The fourth proportional to 80,389.14, 120,583.72 and 27,769.92 is: 41,654.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,389.14 : 120,583.72 = 27,769.92 : x
  2. Step 2: Convert to fraction form
    80,389.14/120,583.72 = 27,769.92/x
  3. Step 3: Cross multiply
    80,389.14x = 120,583.72 × 27,769.92
  4. Step 4: Simplify right side
    80,389.14x = 3,348,600,257.70
  5. Step 5: Solve for x
    x = 3,348,600,257.70/80,389.14
  6. Step 6: Final answer
    x = 41,654.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.