Home / 87,003.11-120,072.71-48,769.14

Finding the Fourth Proportional to 87,003.11, 120,072.71 and 48,769.14

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Solution

The fourth proportional to 87,003.11, 120,072.71 and 48,769.14 is: 67,306.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,003.11 : 120,072.71 = 48,769.14 : x
  2. Step 2: Convert to fraction form
    87,003.11/120,072.71 = 48,769.14/x
  3. Step 3: Cross multiply
    87,003.11x = 120,072.71 × 48,769.14
  4. Step 4: Simplify right side
    87,003.11x = 5,855,842,560.32
  5. Step 5: Solve for x
    x = 5,855,842,560.32/87,003.11
  6. Step 6: Final answer
    x = 67,306.13

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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.