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Finding the Fourth Proportional to 79,717, 110,014.45 and 43,907

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Solution

The fourth proportional to 79,717, 110,014.45 and 43,907 is: 60,594.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,717 : 110,014.45 = 43,907 : x
  2. Step 2: Convert to fraction form
    79,717/110,014.45 = 43,907/x
  3. Step 3: Cross multiply
    79,717x = 110,014.45 × 43,907
  4. Step 4: Simplify right side
    79,717x = 4,830,404,456.15
  5. Step 5: Solve for x
    x = 4,830,404,456.15/79,717
  6. Step 6: Final answer
    x = 60,594.41

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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.