Home / 66,912.08-100,377.30-38,845.31

Finding the Fourth Proportional to 66,912.08, 100,377.30 and 38,845.31

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Solution

The fourth proportional to 66,912.08, 100,377.30 and 38,845.31 is: 58,273.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,912.08 : 100,377.30 = 38,845.31 : x
  2. Step 2: Convert to fraction form
    66,912.08/100,377.30 = 38,845.31/x
  3. Step 3: Cross multiply
    66,912.08x = 100,377.30 × 38,845.31
  4. Step 4: Simplify right side
    66,912.08x = 3,899,187,335.46
  5. Step 5: Solve for x
    x = 3,899,187,335.46/66,912.08
  6. Step 6: Final answer
    x = 58,273.29

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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.