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Finding the Fourth Proportional to 68,214.98, 102,326.27 and 20,837.27

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Solution

The fourth proportional to 68,214.98, 102,326.27 and 20,837.27 is: 31,257.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,214.98 : 102,326.27 = 20,837.27 : x
  2. Step 2: Convert to fraction form
    68,214.98/102,326.27 = 20,837.27/x
  3. Step 3: Cross multiply
    68,214.98x = 102,326.27 × 20,837.27
  4. Step 4: Simplify right side
    68,214.98x = 2,132,200,011.90
  5. Step 5: Solve for x
    x = 2,132,200,011.90/68,214.98
  6. Step 6: Final answer
    x = 31,257.06

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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.