Home / 87,441.20-131,293.80-69,858.80

Finding the Fourth Proportional to 87,441.20, 131,293.80 and 69,858.80

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Solution

The fourth proportional to 87,441.20, 131,293.80 and 69,858.80 is: 104,893.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,441.20 : 131,293.80 = 69,858.80 : x
  2. Step 2: Convert to fraction form
    87,441.20/131,293.80 = 69,858.80/x
  3. Step 3: Cross multiply
    87,441.20x = 131,293.80 × 69,858.80
  4. Step 4: Simplify right side
    87,441.20x = 9,172,027,315.44
  5. Step 5: Solve for x
    x = 9,172,027,315.44/87,441.20
  6. Step 6: Final answer
    x = 104,893.66

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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.