Home / 87,616.18-131,698.60-57,821.88

Finding the Fourth Proportional to 87,616.18, 131,698.60 and 57,821.88

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Solution

The fourth proportional to 87,616.18, 131,698.60 and 57,821.88 is: 86,913.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,616.18 : 131,698.60 = 57,821.88 : x
  2. Step 2: Convert to fraction form
    87,616.18/131,698.60 = 57,821.88/x
  3. Step 3: Cross multiply
    87,616.18x = 131,698.60 × 57,821.88
  4. Step 4: Simplify right side
    87,616.18x = 7,615,060,480.74
  5. Step 5: Solve for x
    x = 7,615,060,480.74/87,616.18
  6. Step 6: Final answer
    x = 86,913.86

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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.