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Finding the Fourth Proportional to 68,080.20, 101,918.70 and 50,627.40

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Solution

The fourth proportional to 68,080.20, 101,918.70 and 50,627.40 is: 75,791.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,080.20 : 101,918.70 = 50,627.40 : x
  2. Step 2: Convert to fraction form
    68,080.20/101,918.70 = 50,627.40/x
  3. Step 3: Cross multiply
    68,080.20x = 101,918.70 × 50,627.40
  4. Step 4: Simplify right side
    68,080.20x = 5,159,878,792.38
  5. Step 5: Solve for x
    x = 5,159,878,792.38/68,080.20
  6. Step 6: Final answer
    x = 75,791.18

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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.