Home / 87,540.69-131,100.55-49,986.97

Finding the Fourth Proportional to 87,540.69, 131,100.55 and 49,986.97

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Solution

The fourth proportional to 87,540.69, 131,100.55 and 49,986.97 is: 74,860.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,540.69 : 131,100.55 = 49,986.97 : x
  2. Step 2: Convert to fraction form
    87,540.69/131,100.55 = 49,986.97/x
  3. Step 3: Cross multiply
    87,540.69x = 131,100.55 × 49,986.97
  4. Step 4: Simplify right side
    87,540.69x = 6,553,319,259.83
  5. Step 5: Solve for x
    x = 6,553,319,259.83/87,540.69
  6. Step 6: Final answer
    x = 74,860.27

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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.