Home / 87,561.66-131,345.31-34,251.54

Finding the Fourth Proportional to 87,561.66, 131,345.31 and 34,251.54

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Solution

The fourth proportional to 87,561.66, 131,345.31 and 34,251.54 is: 51,378.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,561.66 : 131,345.31 = 34,251.54 : x
  2. Step 2: Convert to fraction form
    87,561.66/131,345.31 = 34,251.54/x
  3. Step 3: Cross multiply
    87,561.66x = 131,345.31 × 34,251.54
  4. Step 4: Simplify right side
    87,561.66x = 4,498,779,139.28
  5. Step 5: Solve for x
    x = 4,498,779,139.28/87,561.66
  6. Step 6: Final answer
    x = 51,378.41

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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.