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Finding the Fourth Proportional to 68,844.41, 103,267.76 and 18,924.20

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Solution

The fourth proportional to 68,844.41, 103,267.76 and 18,924.20 is: 28,386.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,844.41 : 103,267.76 = 18,924.20 : x
  2. Step 2: Convert to fraction form
    68,844.41/103,267.76 = 18,924.20/x
  3. Step 3: Cross multiply
    68,844.41x = 103,267.76 × 18,924.20
  4. Step 4: Simplify right side
    68,844.41x = 1,954,259,132.83
  5. Step 5: Solve for x
    x = 1,954,259,132.83/68,844.41
  6. Step 6: Final answer
    x = 28,386.61

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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.