Home / 79,412.22-119,121.57-20,249.43

Finding the Fourth Proportional to 79,412.22, 119,121.57 and 20,249.43

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Solution

The fourth proportional to 79,412.22, 119,121.57 and 20,249.43 is: 30,374.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,412.22 : 119,121.57 = 20,249.43 : x
  2. Step 2: Convert to fraction form
    79,412.22/119,121.57 = 20,249.43/x
  3. Step 3: Cross multiply
    79,412.22x = 119,121.57 × 20,249.43
  4. Step 4: Simplify right side
    79,412.22x = 2,412,143,893.21
  5. Step 5: Solve for x
    x = 2,412,143,893.21/79,412.22
  6. Step 6: Final answer
    x = 30,374.97

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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.