Home / 82,247.41-123,370.70-19,917.91

Finding the Fourth Proportional to 82,247.41, 123,370.70 and 19,917.91

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Solution

The fourth proportional to 82,247.41, 123,370.70 and 19,917.91 is: 29,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,247.41 : 123,370.70 = 19,917.91 : x
  2. Step 2: Convert to fraction form
    82,247.41/123,370.70 = 19,917.91/x
  3. Step 3: Cross multiply
    82,247.41x = 123,370.70 × 19,917.91
  4. Step 4: Simplify right side
    82,247.41x = 2,457,285,882.38
  5. Step 5: Solve for x
    x = 2,457,285,882.38/82,247.41
  6. Step 6: Final answer
    x = 29,876.76

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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.