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Finding the Fourth Proportional to 68,604.82, 102,906.03 and 18,684.10

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Solution

The fourth proportional to 68,604.82, 102,906.03 and 18,684.10 is: 28,025.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,604.82 : 102,906.03 = 18,684.10 : x
  2. Step 2: Convert to fraction form
    68,604.82/102,906.03 = 18,684.10/x
  3. Step 3: Cross multiply
    68,604.82x = 102,906.03 × 18,684.10
  4. Step 4: Simplify right side
    68,604.82x = 1,922,706,555.12
  5. Step 5: Solve for x
    x = 1,922,706,555.12/68,604.82
  6. Step 6: Final answer
    x = 28,025.82

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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.