Home / 87,243.20-130,605.60-52,164.80

Finding the Fourth Proportional to 87,243.20, 130,605.60 and 52,164.80

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Solution

The fourth proportional to 87,243.20, 130,605.60 and 52,164.80 is: 78,092.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,243.20 : 130,605.60 = 52,164.80 : x
  2. Step 2: Convert to fraction form
    87,243.20/130,605.60 = 52,164.80/x
  3. Step 3: Cross multiply
    87,243.20x = 130,605.60 × 52,164.80
  4. Step 4: Simplify right side
    87,243.20x = 6,813,015,002.88
  5. Step 5: Solve for x
    x = 6,813,015,002.88/87,243.20
  6. Step 6: Final answer
    x = 78,092.22

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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.