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Finding the Fourth Proportional to 68,346.60, 102,519.90 and 41,965.80

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Solution

The fourth proportional to 68,346.60, 102,519.90 and 41,965.80 is: 62,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,346.60 : 102,519.90 = 41,965.80 : x
  2. Step 2: Convert to fraction form
    68,346.60/102,519.90 = 41,965.80/x
  3. Step 3: Cross multiply
    68,346.60x = 102,519.90 × 41,965.80
  4. Step 4: Simplify right side
    68,346.60x = 4,302,329,619.42
  5. Step 5: Solve for x
    x = 4,302,329,619.42/68,346.60
  6. Step 6: Final answer
    x = 62,948.70

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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.