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Finding the Fourth Proportional to 68,604.60, 102,914.46 and 21,846.72

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Solution

The fourth proportional to 68,604.60, 102,914.46 and 21,846.72 is: 32,772.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,604.60 : 102,914.46 = 21,846.72 : x
  2. Step 2: Convert to fraction form
    68,604.60/102,914.46 = 21,846.72/x
  3. Step 3: Cross multiply
    68,604.60x = 102,914.46 × 21,846.72
  4. Step 4: Simplify right side
    68,604.60x = 2,248,343,391.57
  5. Step 5: Solve for x
    x = 2,248,343,391.57/68,604.60
  6. Step 6: Final answer
    x = 32,772.49

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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.