Home / 87,646.03-131,424-40,220.29

Finding the Fourth Proportional to 87,646.03, 131,424 and 40,220.29

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Solution

The fourth proportional to 87,646.03, 131,424 and 40,220.29 is: 60,309.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,646.03 : 131,424 = 40,220.29 : x
  2. Step 2: Convert to fraction form
    87,646.03/131,424 = 40,220.29/x
  3. Step 3: Cross multiply
    87,646.03x = 131,424 × 40,220.29
  4. Step 4: Simplify right side
    87,646.03x = 5,285,910,735.84
  5. Step 5: Solve for x
    x = 5,285,910,735.84/87,646.03
  6. Step 6: Final answer
    x = 60,309.76

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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.