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Finding the Fourth Proportional to 68,898.68, 103,358.85 and 29,456

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Solution

The fourth proportional to 68,898.68, 103,358.85 and 29,456 is: 44,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,898.68 : 103,358.85 = 29,456 : x
  2. Step 2: Convert to fraction form
    68,898.68/103,358.85 = 29,456/x
  3. Step 3: Cross multiply
    68,898.68x = 103,358.85 × 29,456
  4. Step 4: Simplify right side
    68,898.68x = 3,044,538,285.60
  5. Step 5: Solve for x
    x = 3,044,538,285.60/68,898.68
  6. Step 6: Final answer
    x = 44,188.63

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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.