Home / 87,769.08-131,667.24-28,590.96

Finding the Fourth Proportional to 87,769.08, 131,667.24 and 28,590.96

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Solution

The fourth proportional to 87,769.08, 131,667.24 and 28,590.96 is: 42,890.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,769.08 : 131,667.24 = 28,590.96 : x
  2. Step 2: Convert to fraction form
    87,769.08/131,667.24 = 28,590.96/x
  3. Step 3: Cross multiply
    87,769.08x = 131,667.24 × 28,590.96
  4. Step 4: Simplify right side
    87,769.08x = 3,764,492,792.15
  5. Step 5: Solve for x
    x = 3,764,492,792.15/87,769.08
  6. Step 6: Final answer
    x = 42,890.88

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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.