Home / 87,811.10-131,327.85-73,814.30

Finding the Fourth Proportional to 87,811.10, 131,327.85 and 73,814.30

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Solution

The fourth proportional to 87,811.10, 131,327.85 and 73,814.30 is: 110,394.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,811.10 : 131,327.85 = 73,814.30 : x
  2. Step 2: Convert to fraction form
    87,811.10/131,327.85 = 73,814.30/x
  3. Step 3: Cross multiply
    87,811.10x = 131,327.85 × 73,814.30
  4. Step 4: Simplify right side
    87,811.10x = 9,693,873,318.26
  5. Step 5: Solve for x
    x = 9,693,873,318.26/87,811.10
  6. Step 6: Final answer
    x = 110,394.62

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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.