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Finding the Fourth Proportional to 68,977.78, 103,380.06 and 29,488.42

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Solution

The fourth proportional to 68,977.78, 103,380.06 and 29,488.42 is: 44,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,977.78 : 103,380.06 = 29,488.42 : x
  2. Step 2: Convert to fraction form
    68,977.78/103,380.06 = 29,488.42/x
  3. Step 3: Cross multiply
    68,977.78x = 103,380.06 × 29,488.42
  4. Step 4: Simplify right side
    68,977.78x = 3,048,514,628.91
  5. Step 5: Solve for x
    x = 3,048,514,628.91/68,977.78
  6. Step 6: Final answer
    x = 44,195.60

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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.