Home / 87,788.36-131,686.30-34,491.88

Finding the Fourth Proportional to 87,788.36, 131,686.30 and 34,491.88

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Solution

The fourth proportional to 87,788.36, 131,686.30 and 34,491.88 is: 51,739.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,788.36 : 131,686.30 = 34,491.88 : x
  2. Step 2: Convert to fraction form
    87,788.36/131,686.30 = 34,491.88/x
  3. Step 3: Cross multiply
    87,788.36x = 131,686.30 × 34,491.88
  4. Step 4: Simplify right side
    87,788.36x = 4,542,107,884.78
  5. Step 5: Solve for x
    x = 4,542,107,884.78/87,788.36
  6. Step 6: Final answer
    x = 51,739.29

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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.