Home / 87,043.90-130,414.65-40,200.70

Finding the Fourth Proportional to 87,043.90, 130,414.65 and 40,200.70

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Solution

The fourth proportional to 87,043.90, 130,414.65 and 40,200.70 is: 60,231.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,043.90 : 130,414.65 = 40,200.70 : x
  2. Step 2: Convert to fraction form
    87,043.90/130,414.65 = 40,200.70/x
  3. Step 3: Cross multiply
    87,043.90x = 130,414.65 × 40,200.70
  4. Step 4: Simplify right side
    87,043.90x = 5,242,760,220.26
  5. Step 5: Solve for x
    x = 5,242,760,220.26/87,043.90
  6. Step 6: Final answer
    x = 60,231.22

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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.