Home / 87,984.36-131,948.76-28,806.42

Finding the Fourth Proportional to 87,984.36, 131,948.76 and 28,806.42

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Solution

The fourth proportional to 87,984.36, 131,948.76 and 28,806.42 is: 43,200.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,984.36 : 131,948.76 = 28,806.42 : x
  2. Step 2: Convert to fraction form
    87,984.36/131,948.76 = 28,806.42/x
  3. Step 3: Cross multiply
    87,984.36x = 131,948.76 × 28,806.42
  4. Step 4: Simplify right side
    87,984.36x = 3,800,971,399.04
  5. Step 5: Solve for x
    x = 3,800,971,399.04/87,984.36
  6. Step 6: Final answer
    x = 43,200.53

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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.