Home / 87,148.18-130,709.89-27,976.20

Finding the Fourth Proportional to 87,148.18, 130,709.89 and 27,976.20

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Solution

The fourth proportional to 87,148.18, 130,709.89 and 27,976.20 is: 41,960.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,148.18 : 130,709.89 = 27,976.20 : x
  2. Step 2: Convert to fraction form
    87,148.18/130,709.89 = 27,976.20/x
  3. Step 3: Cross multiply
    87,148.18x = 130,709.89 × 27,976.20
  4. Step 4: Simplify right side
    87,148.18x = 3,656,766,024.62
  5. Step 5: Solve for x
    x = 3,656,766,024.62/87,148.18
  6. Step 6: Final answer
    x = 41,960.33

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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.