Home / 83,389.85-125,087.29-32,786.78

Finding the Fourth Proportional to 83,389.85, 125,087.29 and 32,786.78

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Solution

The fourth proportional to 83,389.85, 125,087.29 and 32,786.78 is: 49,181.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,389.85 : 125,087.29 = 32,786.78 : x
  2. Step 2: Convert to fraction form
    83,389.85/125,087.29 = 32,786.78/x
  3. Step 3: Cross multiply
    83,389.85x = 125,087.29 × 32,786.78
  4. Step 4: Simplify right side
    83,389.85x = 4,101,208,750.62
  5. Step 5: Solve for x
    x = 4,101,208,750.62/83,389.85
  6. Step 6: Final answer
    x = 49,181.15

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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.