Home / 87,769.18-131,628.64-28,610.02

Finding the Fourth Proportional to 87,769.18, 131,628.64 and 28,610.02

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Solution

The fourth proportional to 87,769.18, 131,628.64 and 28,610.02 is: 42,906.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,769.18 : 131,628.64 = 28,610.02 : x
  2. Step 2: Convert to fraction form
    87,769.18/131,628.64 = 28,610.02/x
  3. Step 3: Cross multiply
    87,769.18x = 131,628.64 × 28,610.02
  4. Step 4: Simplify right side
    87,769.18x = 3,765,898,022.97
  5. Step 5: Solve for x
    x = 3,765,898,022.97/87,769.18
  6. Step 6: Final answer
    x = 42,906.84

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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.