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Finding the Fourth Proportional to 67,751.40, 101,627.10 and 17,839.20

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Solution

The fourth proportional to 67,751.40, 101,627.10 and 17,839.20 is: 26,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,751.40 : 101,627.10 = 17,839.20 : x
  2. Step 2: Convert to fraction form
    67,751.40/101,627.10 = 17,839.20/x
  3. Step 3: Cross multiply
    67,751.40x = 101,627.10 × 17,839.20
  4. Step 4: Simplify right side
    67,751.40x = 1,812,946,162.32
  5. Step 5: Solve for x
    x = 1,812,946,162.32/67,751.40
  6. Step 6: Final answer
    x = 26,758.80

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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.