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Finding the Fourth Proportional to 68,827.98, 103,229.60 and 18,227.32

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Solution

The fourth proportional to 68,827.98, 103,229.60 and 18,227.32 is: 27,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,827.98 : 103,229.60 = 18,227.32 : x
  2. Step 2: Convert to fraction form
    68,827.98/103,229.60 = 18,227.32/x
  3. Step 3: Cross multiply
    68,827.98x = 103,229.60 × 18,227.32
  4. Step 4: Simplify right side
    68,827.98x = 1,881,598,952.67
  5. Step 5: Solve for x
    x = 1,881,598,952.67/68,827.98
  6. Step 6: Final answer
    x = 27,337.70

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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.