Home / 87,293.46-130,939.92-57,704.70

Finding the Fourth Proportional to 87,293.46, 130,939.92 and 57,704.70

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Solution

The fourth proportional to 87,293.46, 130,939.92 and 57,704.70 is: 86,556.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,293.46 : 130,939.92 = 57,704.70 : x
  2. Step 2: Convert to fraction form
    87,293.46/130,939.92 = 57,704.70/x
  3. Step 3: Cross multiply
    87,293.46x = 130,939.92 × 57,704.70
  4. Step 4: Simplify right side
    87,293.46x = 7,555,848,801.62
  5. Step 5: Solve for x
    x = 7,555,848,801.62/87,293.46
  6. Step 6: Final answer
    x = 86,556.87

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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.