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Finding the Fourth Proportional to 68,359.60, 102,539.40 and 50,863.60

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Solution

The fourth proportional to 68,359.60, 102,539.40 and 50,863.60 is: 76,295.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,359.60 : 102,539.40 = 50,863.60 : x
  2. Step 2: Convert to fraction form
    68,359.60/102,539.40 = 50,863.60/x
  3. Step 3: Cross multiply
    68,359.60x = 102,539.40 × 50,863.60
  4. Step 4: Simplify right side
    68,359.60x = 5,215,523,025.84
  5. Step 5: Solve for x
    x = 5,215,523,025.84/68,359.60
  6. Step 6: Final answer
    x = 76,295.40

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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.