Home / 78,791.05-108,740.70-43,869.25

Finding the Fourth Proportional to 78,791.05, 108,740.70 and 43,869.25

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Solution

The fourth proportional to 78,791.05, 108,740.70 and 43,869.25 is: 60,544.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,791.05 : 108,740.70 = 43,869.25 : x
  2. Step 2: Convert to fraction form
    78,791.05/108,740.70 = 43,869.25/x
  3. Step 3: Cross multiply
    78,791.05x = 108,740.70 × 43,869.25
  4. Step 4: Simplify right side
    78,791.05x = 4,770,372,190.43
  5. Step 5: Solve for x
    x = 4,770,372,190.43/78,791.05
  6. Step 6: Final answer
    x = 60,544.60

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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.