Home / 87,080.20-130,620.30-52,001.80

Finding the Fourth Proportional to 87,080.20, 130,620.30 and 52,001.80

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Solution

The fourth proportional to 87,080.20, 130,620.30 and 52,001.80 is: 78,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,080.20 : 130,620.30 = 52,001.80 : x
  2. Step 2: Convert to fraction form
    87,080.20/130,620.30 = 52,001.80/x
  3. Step 3: Cross multiply
    87,080.20x = 130,620.30 × 52,001.80
  4. Step 4: Simplify right side
    87,080.20x = 6,792,490,716.54
  5. Step 5: Solve for x
    x = 6,792,490,716.54/87,080.20
  6. Step 6: Final answer
    x = 78,002.70

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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.