Home / 83,867.85-125,860.10-54,212.13

Finding the Fourth Proportional to 83,867.85, 125,860.10 and 54,212.13

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Solution

The fourth proportional to 83,867.85, 125,860.10 and 54,212.13 is: 81,355.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,867.85 : 125,860.10 = 54,212.13 : x
  2. Step 2: Convert to fraction form
    83,867.85/125,860.10 = 54,212.13/x
  3. Step 3: Cross multiply
    83,867.85x = 125,860.10 × 54,212.13
  4. Step 4: Simplify right side
    83,867.85x = 6,823,144,103.01
  5. Step 5: Solve for x
    x = 6,823,144,103.01/83,867.85
  6. Step 6: Final answer
    x = 81,355.90

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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.