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Finding the Fourth Proportional to 80,090.70, 120,134.42 and 23,930.97

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Solution

The fourth proportional to 80,090.70, 120,134.42 and 23,930.97 is: 35,895.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,090.70 : 120,134.42 = 23,930.97 : x
  2. Step 2: Convert to fraction form
    80,090.70/120,134.42 = 23,930.97/x
  3. Step 3: Cross multiply
    80,090.70x = 120,134.42 × 23,930.97
  4. Step 4: Simplify right side
    80,090.70x = 2,874,933,200.99
  5. Step 5: Solve for x
    x = 2,874,933,200.99/80,090.70
  6. Step 6: Final answer
    x = 35,895.97

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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.