Home / 87,779.20-131,665.84-35,174.56

Finding the Fourth Proportional to 87,779.20, 131,665.84 and 35,174.56

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Solution

The fourth proportional to 87,779.20, 131,665.84 and 35,174.56 is: 52,760.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,779.20 : 131,665.84 = 35,174.56 : x
  2. Step 2: Convert to fraction form
    87,779.20/131,665.84 = 35,174.56/x
  3. Step 3: Cross multiply
    87,779.20x = 131,665.84 × 35,174.56
  4. Step 4: Simplify right side
    87,779.20x = 4,631,287,989.03
  5. Step 5: Solve for x
    x = 4,631,287,989.03/87,779.20
  6. Step 6: Final answer
    x = 52,760.65

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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.