Home / 79,512.57-109,728.20-43,214.03

Finding the Fourth Proportional to 79,512.57, 109,728.20 and 43,214.03

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Solution

The fourth proportional to 79,512.57, 109,728.20 and 43,214.03 is: 59,635.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,512.57 : 109,728.20 = 43,214.03 : x
  2. Step 2: Convert to fraction form
    79,512.57/109,728.20 = 43,214.03/x
  3. Step 3: Cross multiply
    79,512.57x = 109,728.20 × 43,214.03
  4. Step 4: Simplify right side
    79,512.57x = 4,741,797,178.01
  5. Step 5: Solve for x
    x = 4,741,797,178.01/79,512.57
  6. Step 6: Final answer
    x = 59,635.82

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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.