Home / 50,107.41-75,161.12-20,519.87

Finding the Fourth Proportional to 50,107.41, 75,161.12 and 20,519.87

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Solution

The fourth proportional to 50,107.41, 75,161.12 and 20,519.87 is: 30,779.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,107.41 : 75,161.12 = 20,519.87 : x
  2. Step 2: Convert to fraction form
    50,107.41/75,161.12 = 20,519.87/x
  3. Step 3: Cross multiply
    50,107.41x = 75,161.12 × 20,519.87
  4. Step 4: Simplify right side
    50,107.41x = 1,542,295,933.05
  5. Step 5: Solve for x
    x = 1,542,295,933.05/50,107.41
  6. Step 6: Final answer
    x = 30,779.80

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Double scale
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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.