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Finding the Fourth Proportional to 79,740, 110,046.24 and 43,930.08

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Solution

The fourth proportional to 79,740, 110,046.24 and 43,930.08 is: 60,626.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,740 : 110,046.24 = 43,930.08 : x
  2. Step 2: Convert to fraction form
    79,740/110,046.24 = 43,930.08/x
  3. Step 3: Cross multiply
    79,740x = 110,046.24 × 43,930.08
  4. Step 4: Simplify right side
    79,740x = 4,834,340,126.90
  5. Step 5: Solve for x
    x = 4,834,340,126.90/79,740
  6. Step 6: Final answer
    x = 60,626.29

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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.