Home / 87,835.32-131,759.46-31,708.80

Finding the Fourth Proportional to 87,835.32, 131,759.46 and 31,708.80

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Solution

The fourth proportional to 87,835.32, 131,759.46 and 31,708.80 is: 47,565.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,835.32 : 131,759.46 = 31,708.80 : x
  2. Step 2: Convert to fraction form
    87,835.32/131,759.46 = 31,708.80/x
  3. Step 3: Cross multiply
    87,835.32x = 131,759.46 × 31,708.80
  4. Step 4: Simplify right side
    87,835.32x = 4,177,934,365.25
  5. Step 5: Solve for x
    x = 4,177,934,365.25/87,835.32
  6. Step 6: Final answer
    x = 47,565.54

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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.