Home / 87,331.82-131,023.25-28,166.18

Finding the Fourth Proportional to 87,331.82, 131,023.25 and 28,166.18

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Solution

The fourth proportional to 87,331.82, 131,023.25 and 28,166.18 is: 42,257.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,331.82 : 131,023.25 = 28,166.18 : x
  2. Step 2: Convert to fraction form
    87,331.82/131,023.25 = 28,166.18/x
  3. Step 3: Cross multiply
    87,331.82x = 131,023.25 × 28,166.18
  4. Step 4: Simplify right side
    87,331.82x = 3,690,424,302.85
  5. Step 5: Solve for x
    x = 3,690,424,302.85/87,331.82
  6. Step 6: Final answer
    x = 42,257.50

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Half scale
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Double scale
Find fourth proportional to 87,332.82, 131,024.75 and 28,167.18
Similar ratio
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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.