Home / 87,333.75-130,996.03-28,169.43

Finding the Fourth Proportional to 87,333.75, 130,996.03 and 28,169.43

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Solution

The fourth proportional to 87,333.75, 130,996.03 and 28,169.43 is: 42,252.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,333.75 : 130,996.03 = 28,169.43 : x
  2. Step 2: Convert to fraction form
    87,333.75/130,996.03 = 28,169.43/x
  3. Step 3: Cross multiply
    87,333.75x = 130,996.03 × 28,169.43
  4. Step 4: Simplify right side
    87,333.75x = 3,690,083,497.36
  5. Step 5: Solve for x
    x = 3,690,083,497.36/87,333.75
  6. Step 6: Final answer
    x = 42,252.66

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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.