Home / 87,398.98-131,084.30-28,234.92

Finding the Fourth Proportional to 87,398.98, 131,084.30 and 28,234.92

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Solution

The fourth proportional to 87,398.98, 131,084.30 and 28,234.92 is: 42,347.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,398.98 : 131,084.30 = 28,234.92 : x
  2. Step 2: Convert to fraction form
    87,398.98/131,084.30 = 28,234.92/x
  3. Step 3: Cross multiply
    87,398.98x = 131,084.30 × 28,234.92
  4. Step 4: Simplify right side
    87,398.98x = 3,701,154,723.76
  5. Step 5: Solve for x
    x = 3,701,154,723.76/87,398.98
  6. Step 6: Final answer
    x = 42,347.80

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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.