Home / 87,912.68-131,855.45-28,748.25

Finding the Fourth Proportional to 87,912.68, 131,855.45 and 28,748.25

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Solution

The fourth proportional to 87,912.68, 131,855.45 and 28,748.25 is: 43,117.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,912.68 : 131,855.45 = 28,748.25 : x
  2. Step 2: Convert to fraction form
    87,912.68/131,855.45 = 28,748.25/x
  3. Step 3: Cross multiply
    87,912.68x = 131,855.45 × 28,748.25
  4. Step 4: Simplify right side
    87,912.68x = 3,790,613,296.72
  5. Step 5: Solve for x
    x = 3,790,613,296.72/87,912.68
  6. Step 6: Final answer
    x = 43,117.94

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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.