Home / 83,396.31-125,107.43-28,005.27

Finding the Fourth Proportional to 83,396.31, 125,107.43 and 28,005.27

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Solution

The fourth proportional to 83,396.31, 125,107.43 and 28,005.27 is: 42,012.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,396.31 : 125,107.43 = 28,005.27 : x
  2. Step 2: Convert to fraction form
    83,396.31/125,107.43 = 28,005.27/x
  3. Step 3: Cross multiply
    83,396.31x = 125,107.43 × 28,005.27
  4. Step 4: Simplify right side
    83,396.31x = 3,503,667,668.92
  5. Step 5: Solve for x
    x = 3,503,667,668.92/83,396.31
  6. Step 6: Final answer
    x = 42,012.26

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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.