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Finding the Fourth Proportional to 78,914, 108,896.88 and 44,930.78

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Solution

The fourth proportional to 78,914, 108,896.88 and 44,930.78 is: 62,001.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,914 : 108,896.88 = 44,930.78 : x
  2. Step 2: Convert to fraction form
    78,914/108,896.88 = 44,930.78/x
  3. Step 3: Cross multiply
    78,914x = 108,896.88 × 44,930.78
  4. Step 4: Simplify right side
    78,914x = 4,892,821,757.97
  5. Step 5: Solve for x
    x = 4,892,821,757.97/78,914
  6. Step 6: Final answer
    x = 62,001.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.