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Finding the Fourth Proportional to 68,604.16, 102,847.10 and 26,513.78

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Solution

The fourth proportional to 68,604.16, 102,847.10 and 26,513.78 is: 39,747.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,604.16 : 102,847.10 = 26,513.78 : x
  2. Step 2: Convert to fraction form
    68,604.16/102,847.10 = 26,513.78/x
  3. Step 3: Cross multiply
    68,604.16x = 102,847.10 × 26,513.78
  4. Step 4: Simplify right side
    68,604.16x = 2,726,865,383.04
  5. Step 5: Solve for x
    x = 2,726,865,383.04/68,604.16
  6. Step 6: Final answer
    x = 39,747.81

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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.