Home / 83,550.38-125,144.03-51,431.55

Finding the Fourth Proportional to 83,550.38, 125,144.03 and 51,431.55

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Solution

The fourth proportional to 83,550.38, 125,144.03 and 51,431.55 is: 77,035.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,550.38 : 125,144.03 = 51,431.55 : x
  2. Step 2: Convert to fraction form
    83,550.38/125,144.03 = 51,431.55/x
  3. Step 3: Cross multiply
    83,550.38x = 125,144.03 × 51,431.55
  4. Step 4: Simplify right side
    83,550.38x = 6,436,351,095.44
  5. Step 5: Solve for x
    x = 6,436,351,095.44/83,550.38
  6. Step 6: Final answer
    x = 77,035.57

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1.5x scale

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.