Home / 82,249.41-123,373.70-19,919.91

Finding the Fourth Proportional to 82,249.41, 123,373.70 and 19,919.91

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Solution

The fourth proportional to 82,249.41, 123,373.70 and 19,919.91 is: 29,879.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,249.41 : 123,373.70 = 19,919.91 : x
  2. Step 2: Convert to fraction form
    82,249.41/123,373.70 = 19,919.91/x
  3. Step 3: Cross multiply
    82,249.41x = 123,373.70 × 19,919.91
  4. Step 4: Simplify right side
    82,249.41x = 2,457,593,000.37
  5. Step 5: Solve for x
    x = 2,457,593,000.37/82,249.41
  6. Step 6: Final answer
    x = 29,879.76

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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.