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Finding the Fourth Proportional to 78,333.78, 117,500.70 and 22,929.78

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Solution

The fourth proportional to 78,333.78, 117,500.70 and 22,929.78 is: 34,394.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,333.78 : 117,500.70 = 22,929.78 : x
  2. Step 2: Convert to fraction form
    78,333.78/117,500.70 = 22,929.78/x
  3. Step 3: Cross multiply
    78,333.78x = 117,500.70 × 22,929.78
  4. Step 4: Simplify right side
    78,333.78x = 2,694,265,200.85
  5. Step 5: Solve for x
    x = 2,694,265,200.85/78,333.78
  6. Step 6: Final answer
    x = 34,394.68

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1.5x scale

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.