Home / 83,310.90-125,000.37-43,902.78

Finding the Fourth Proportional to 83,310.90, 125,000.37 and 43,902.78

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Solution

The fourth proportional to 83,310.90, 125,000.37 and 43,902.78 is: 65,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,310.90 : 125,000.37 = 43,902.78 : x
  2. Step 2: Convert to fraction form
    83,310.90/125,000.37 = 43,902.78/x
  3. Step 3: Cross multiply
    83,310.90x = 125,000.37 × 43,902.78
  4. Step 4: Simplify right side
    83,310.90x = 5,487,863,744.03
  5. Step 5: Solve for x
    x = 5,487,863,744.03/83,310.90
  6. Step 6: Final answer
    x = 65,872.10

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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.