Home / 87,654.50-131,416.14-28,454.84

Finding the Fourth Proportional to 87,654.50, 131,416.14 and 28,454.84

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Solution

The fourth proportional to 87,654.50, 131,416.14 and 28,454.84 is: 42,660.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,654.50 : 131,416.14 = 28,454.84 : x
  2. Step 2: Convert to fraction form
    87,654.50/131,416.14 = 28,454.84/x
  3. Step 3: Cross multiply
    87,654.50x = 131,416.14 × 28,454.84
  4. Step 4: Simplify right side
    87,654.50x = 3,739,425,237.12
  5. Step 5: Solve for x
    x = 3,739,425,237.12/87,654.50
  6. Step 6: Final answer
    x = 42,660.96

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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.