Home / 80,288.97-120,428.78-24,127.89

Finding the Fourth Proportional to 80,288.97, 120,428.78 and 24,127.89

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Solution

The fourth proportional to 80,288.97, 120,428.78 and 24,127.89 is: 36,190.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,288.97 : 120,428.78 = 24,127.89 : x
  2. Step 2: Convert to fraction form
    80,288.97/120,428.78 = 24,127.89/x
  3. Step 3: Cross multiply
    80,288.97x = 120,428.78 × 24,127.89
  4. Step 4: Simplify right side
    80,288.97x = 2,905,692,236.03
  5. Step 5: Solve for x
    x = 2,905,692,236.03/80,288.97
  6. Step 6: Final answer
    x = 36,190.43

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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.