Home / 83,874.96-125,631-39,435.12

Finding the Fourth Proportional to 83,874.96, 125,631 and 39,435.12

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Solution

The fourth proportional to 83,874.96, 125,631 and 39,435.12 is: 59,067.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,874.96 : 125,631 = 39,435.12 : x
  2. Step 2: Convert to fraction form
    83,874.96/125,631 = 39,435.12/x
  3. Step 3: Cross multiply
    83,874.96x = 125,631 × 39,435.12
  4. Step 4: Simplify right side
    83,874.96x = 4,954,273,560.72
  5. Step 5: Solve for x
    x = 4,954,273,560.72/83,874.96
  6. Step 6: Final answer
    x = 59,067.37

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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.