Home / 87,824.70-131,736.51-28,660.41

Finding the Fourth Proportional to 87,824.70, 131,736.51 and 28,660.41

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Solution

The fourth proportional to 87,824.70, 131,736.51 and 28,660.41 is: 42,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,824.70 : 131,736.51 = 28,660.41 : x
  2. Step 2: Convert to fraction form
    87,824.70/131,736.51 = 28,660.41/x
  3. Step 3: Cross multiply
    87,824.70x = 131,736.51 × 28,660.41
  4. Step 4: Simplify right side
    87,824.70x = 3,775,622,388.57
  5. Step 5: Solve for x
    x = 3,775,622,388.57/87,824.70
  6. Step 6: Final answer
    x = 42,990.44

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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.