Home / 87,701.78-131,566.41-28,523.58

Finding the Fourth Proportional to 87,701.78, 131,566.41 and 28,523.58

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Solution

The fourth proportional to 87,701.78, 131,566.41 and 28,523.58 is: 42,789.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,701.78 : 131,566.41 = 28,523.58 : x
  2. Step 2: Convert to fraction form
    87,701.78/131,566.41 = 28,523.58/x
  3. Step 3: Cross multiply
    87,701.78x = 131,566.41 × 28,523.58
  4. Step 4: Simplify right side
    87,701.78x = 3,752,745,020.95
  5. Step 5: Solve for x
    x = 3,752,745,020.95/87,701.78
  6. Step 6: Final answer
    x = 42,789.84

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1.5x scale

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.