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Finding the Fourth Proportional to 68,789.60, 94,311.36 and 67,545.44

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Solution

The fourth proportional to 68,789.60, 94,311.36 and 67,545.44 is: 92,605.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,789.60 : 94,311.36 = 67,545.44 : x
  2. Step 2: Convert to fraction form
    68,789.60/94,311.36 = 67,545.44/x
  3. Step 3: Cross multiply
    68,789.60x = 94,311.36 × 67,545.44
  4. Step 4: Simplify right side
    68,789.60x = 6,370,302,308.20
  5. Step 5: Solve for x
    x = 6,370,302,308.20/68,789.60
  6. Step 6: Final answer
    x = 92,605.60

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.