Home / 87,589.20-131,259.60-67,775.52

Finding the Fourth Proportional to 87,589.20, 131,259.60 and 67,775.52

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Solution

The fourth proportional to 87,589.20, 131,259.60 and 67,775.52 is: 101,567.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,589.20 : 131,259.60 = 67,775.52 : x
  2. Step 2: Convert to fraction form
    87,589.20/131,259.60 = 67,775.52/x
  3. Step 3: Cross multiply
    87,589.20x = 131,259.60 × 67,775.52
  4. Step 4: Simplify right side
    87,589.20x = 8,896,187,644.99
  5. Step 5: Solve for x
    x = 8,896,187,644.99/87,589.20
  6. Step 6: Final answer
    x = 101,567.18

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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.