Home / 87,257.09-130,889.38-27,286.70

Finding the Fourth Proportional to 87,257.09, 130,889.38 and 27,286.70

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Solution

The fourth proportional to 87,257.09, 130,889.38 and 27,286.70 is: 40,931.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,257.09 : 130,889.38 = 27,286.70 : x
  2. Step 2: Convert to fraction form
    87,257.09/130,889.38 = 27,286.70/x
  3. Step 3: Cross multiply
    87,257.09x = 130,889.38 × 27,286.70
  4. Step 4: Simplify right side
    87,257.09x = 3,571,538,590.80
  5. Step 5: Solve for x
    x = 3,571,538,590.80/87,257.09
  6. Step 6: Final answer
    x = 40,931.22

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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.