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Finding the Fourth Proportional to 87,879.52, 131,825.42 and 35,289

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Solution

The fourth proportional to 87,879.52, 131,825.42 and 35,289 is: 52,935.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,879.52 : 131,825.42 = 35,289 : x
  2. Step 2: Convert to fraction form
    87,879.52/131,825.42 = 35,289/x
  3. Step 3: Cross multiply
    87,879.52x = 131,825.42 × 35,289
  4. Step 4: Simplify right side
    87,879.52x = 4,651,987,400.77
  5. Step 5: Solve for x
    x = 4,651,987,400.77/87,879.52
  6. Step 6: Final answer
    x = 52,935.97

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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.