Home / 87,888.23-131,722.69-42,872.48

Finding the Fourth Proportional to 87,888.23, 131,722.69 and 42,872.48

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Solution

The fourth proportional to 87,888.23, 131,722.69 and 42,872.48 is: 64,255.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,888.23 : 131,722.69 = 42,872.48 : x
  2. Step 2: Convert to fraction form
    87,888.23/131,722.69 = 42,872.48/x
  3. Step 3: Cross multiply
    87,888.23x = 131,722.69 × 42,872.48
  4. Step 4: Simplify right side
    87,888.23x = 5,647,278,392.57
  5. Step 5: Solve for x
    x = 5,647,278,392.57/87,888.23
  6. Step 6: Final answer
    x = 64,255.23

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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.