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Finding the Fourth Proportional to 68,352.60, 102,528.90 and 19,104.60

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Solution

The fourth proportional to 68,352.60, 102,528.90 and 19,104.60 is: 28,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,352.60 : 102,528.90 = 19,104.60 : x
  2. Step 2: Convert to fraction form
    68,352.60/102,528.90 = 19,104.60/x
  3. Step 3: Cross multiply
    68,352.60x = 102,528.90 × 19,104.60
  4. Step 4: Simplify right side
    68,352.60x = 1,958,773,622.94
  5. Step 5: Solve for x
    x = 1,958,773,622.94/68,352.60
  6. Step 6: Final answer
    x = 28,656.90

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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.