Home / 87,177.72-120,316.14-49,464.12

Finding the Fourth Proportional to 87,177.72, 120,316.14 and 49,464.12

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Solution

The fourth proportional to 87,177.72, 120,316.14 and 49,464.12 is: 68,266.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,177.72 : 120,316.14 = 49,464.12 : x
  2. Step 2: Convert to fraction form
    87,177.72/120,316.14 = 49,464.12/x
  3. Step 3: Cross multiply
    87,177.72x = 120,316.14 × 49,464.12
  4. Step 4: Simplify right side
    87,177.72x = 5,951,331,986.90
  5. Step 5: Solve for x
    x = 5,951,331,986.90/87,177.72
  6. Step 6: Final answer
    x = 68,266.66

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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.