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Finding the Fourth Proportional to 68,663.27, 102,911.73 and 29,137.35

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Solution

The fourth proportional to 68,663.27, 102,911.73 and 29,137.35 is: 43,670.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,663.27 : 102,911.73 = 29,137.35 : x
  2. Step 2: Convert to fraction form
    68,663.27/102,911.73 = 29,137.35/x
  3. Step 3: Cross multiply
    68,663.27x = 102,911.73 × 29,137.35
  4. Step 4: Simplify right side
    68,663.27x = 2,998,575,096.12
  5. Step 5: Solve for x
    x = 2,998,575,096.12/68,663.27
  6. Step 6: Final answer
    x = 43,670.73

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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.