Home / 87,834.40-131,578.80-52,669.60

Finding the Fourth Proportional to 87,834.40, 131,578.80 and 52,669.60

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Solution

The fourth proportional to 87,834.40, 131,578.80 and 52,669.60 is: 78,900.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,834.40 : 131,578.80 = 52,669.60 : x
  2. Step 2: Convert to fraction form
    87,834.40/131,578.80 = 52,669.60/x
  3. Step 3: Cross multiply
    87,834.40x = 131,578.80 × 52,669.60
  4. Step 4: Simplify right side
    87,834.40x = 6,930,202,764.48
  5. Step 5: Solve for x
    x = 6,930,202,764.48/87,834.40
  6. Step 6: Final answer
    x = 78,900.78

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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.