Home / 41,128.20-61,706.70-17,761.80

Finding the Fourth Proportional to 41,128.20, 61,706.70 and 17,761.80

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Solution

The fourth proportional to 41,128.20, 61,706.70 and 17,761.80 is: 26,648.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,128.20 : 61,706.70 = 17,761.80 : x
  2. Step 2: Convert to fraction form
    41,128.20/61,706.70 = 17,761.80/x
  3. Step 3: Cross multiply
    41,128.20x = 61,706.70 × 17,761.80
  4. Step 4: Simplify right side
    41,128.20x = 1,096,022,064.06
  5. Step 5: Solve for x
    x = 1,096,022,064.06/41,128.20
  6. Step 6: Final answer
    x = 26,648.92

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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.