Home / 79,540.70-109,763.34-43,730.43

Finding the Fourth Proportional to 79,540.70, 109,763.34 and 43,730.43

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Solution

The fourth proportional to 79,540.70, 109,763.34 and 43,730.43 is: 60,346.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,540.70 : 109,763.34 = 43,730.43 : x
  2. Step 2: Convert to fraction form
    79,540.70/109,763.34 = 43,730.43/x
  3. Step 3: Cross multiply
    79,540.70x = 109,763.34 × 43,730.43
  4. Step 4: Simplify right side
    79,540.70x = 4,799,997,480.83
  5. Step 5: Solve for x
    x = 4,799,997,480.83/79,540.70
  6. Step 6: Final answer
    x = 60,346.44

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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.