Home / 79,229.25-109,336.37-43,420.68

Finding the Fourth Proportional to 79,229.25, 109,336.37 and 43,420.68

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Solution

The fourth proportional to 79,229.25, 109,336.37 and 43,420.68 is: 59,920.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,229.25 : 109,336.37 = 43,420.68 : x
  2. Step 2: Convert to fraction form
    79,229.25/109,336.37 = 43,420.68/x
  3. Step 3: Cross multiply
    79,229.25x = 109,336.37 × 43,420.68
  4. Step 4: Simplify right side
    79,229.25x = 4,747,459,317.03
  5. Step 5: Solve for x
    x = 4,747,459,317.03/79,229.25
  6. Step 6: Final answer
    x = 59,920.54

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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.