Home / 79,438.26-109,625.55-43,629

Finding the Fourth Proportional to 79,438.26, 109,625.55 and 43,629

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Solution

The fourth proportional to 79,438.26, 109,625.55 and 43,629 is: 60,208.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,438.26 : 109,625.55 = 43,629 : x
  2. Step 2: Convert to fraction form
    79,438.26/109,625.55 = 43,629/x
  3. Step 3: Cross multiply
    79,438.26x = 109,625.55 × 43,629
  4. Step 4: Simplify right side
    79,438.26x = 4,782,853,120.95
  5. Step 5: Solve for x
    x = 4,782,853,120.95/79,438.26
  6. Step 6: Final answer
    x = 60,208.43

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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.