Home / 50,107.89-75,161.79-20,525.78

Finding the Fourth Proportional to 50,107.89, 75,161.79 and 20,525.78

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Solution

The fourth proportional to 50,107.89, 75,161.79 and 20,525.78 is: 30,788.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,107.89 : 75,161.79 = 20,525.78 : x
  2. Step 2: Convert to fraction form
    50,107.89/75,161.79 = 20,525.78/x
  3. Step 3: Cross multiply
    50,107.89x = 75,161.79 × 20,525.78
  4. Step 4: Simplify right side
    50,107.89x = 1,542,754,553.85
  5. Step 5: Solve for x
    x = 1,542,754,553.85/50,107.89
  6. Step 6: Final answer
    x = 30,788.65

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Similar ratio
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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.