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Finding the Fourth Proportional to 52,236.36, 78,354 and 12,793.68

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Solution

The fourth proportional to 52,236.36, 78,354 and 12,793.68 is: 19,190.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,236.36 : 78,354 = 12,793.68 : x
  2. Step 2: Convert to fraction form
    52,236.36/78,354 = 12,793.68/x
  3. Step 3: Cross multiply
    52,236.36x = 78,354 × 12,793.68
  4. Step 4: Simplify right side
    52,236.36x = 1,002,436,002.72
  5. Step 5: Solve for x
    x = 1,002,436,002.72/52,236.36
  6. Step 6: Final answer
    x = 19,190.39

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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.