Home / 68,918.43-95,128.08-40,245.85

Finding the Fourth Proportional to 68,918.43, 95,128.08 and 40,245.85

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Solution

The fourth proportional to 68,918.43, 95,128.08 and 40,245.85 is: 55,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,918.43 : 95,128.08 = 40,245.85 : x
  2. Step 2: Convert to fraction form
    68,918.43/95,128.08 = 40,245.85/x
  3. Step 3: Cross multiply
    68,918.43x = 95,128.08 × 40,245.85
  4. Step 4: Simplify right side
    68,918.43x = 3,828,510,438.47
  5. Step 5: Solve for x
    x = 3,828,510,438.47/68,918.43
  6. Step 6: Final answer
    x = 55,551.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.