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Finding the Fourth Proportional to 68,002.40, 101,809.20 and 41,758.40

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Solution

The fourth proportional to 68,002.40, 101,809.20 and 41,758.40 is: 62,518.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,002.40 : 101,809.20 = 41,758.40 : x
  2. Step 2: Convert to fraction form
    68,002.40/101,809.20 = 41,758.40/x
  3. Step 3: Cross multiply
    68,002.40x = 101,809.20 × 41,758.40
  4. Step 4: Simplify right side
    68,002.40x = 4,251,389,297.28
  5. Step 5: Solve for x
    x = 4,251,389,297.28/68,002.40
  6. Step 6: Final answer
    x = 62,518.22

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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.