Home / 87,999.90-131,769.45-64,499.10

Finding the Fourth Proportional to 87,999.90, 131,769.45 and 64,499.10

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Solution

The fourth proportional to 87,999.90, 131,769.45 and 64,499.10 is: 96,579.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.90 : 131,769.45 = 64,499.10 : x
  2. Step 2: Convert to fraction form
    87,999.90/131,769.45 = 64,499.10/x
  3. Step 3: Cross multiply
    87,999.90x = 131,769.45 × 64,499.10
  4. Step 4: Simplify right side
    87,999.90x = 8,499,010,932.50
  5. Step 5: Solve for x
    x = 8,499,010,932.50/87,999.90
  6. Step 6: Final answer
    x = 96,579.78

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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.