Home / 87,335.82-131,029.25-28,170.18

Finding the Fourth Proportional to 87,335.82, 131,029.25 and 28,170.18

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Solution

The fourth proportional to 87,335.82, 131,029.25 and 28,170.18 is: 42,263.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,335.82 : 131,029.25 = 28,170.18 : x
  2. Step 2: Convert to fraction form
    87,335.82/131,029.25 = 28,170.18/x
  3. Step 3: Cross multiply
    87,335.82x = 131,029.25 × 28,170.18
  4. Step 4: Simplify right side
    87,335.82x = 3,691,117,416.91
  5. Step 5: Solve for x
    x = 3,691,117,416.91/87,335.82
  6. Step 6: Final answer
    x = 42,263.50

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Double scale
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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.