Home / 87,687.40-131,433.90-48,272.80

Finding the Fourth Proportional to 87,687.40, 131,433.90 and 48,272.80

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Solution

The fourth proportional to 87,687.40, 131,433.90 and 48,272.80 is: 72,355.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,687.40 : 131,433.90 = 48,272.80 : x
  2. Step 2: Convert to fraction form
    87,687.40/131,433.90 = 48,272.80/x
  3. Step 3: Cross multiply
    87,687.40x = 131,433.90 × 48,272.80
  4. Step 4: Simplify right side
    87,687.40x = 6,344,682,367.92
  5. Step 5: Solve for x
    x = 6,344,682,367.92/87,687.40
  6. Step 6: Final answer
    x = 72,355.69

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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.