Home / 79,219.78-109,321.41-43,408.06

Finding the Fourth Proportional to 79,219.78, 109,321.41 and 43,408.06

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Solution

The fourth proportional to 79,219.78, 109,321.41 and 43,408.06 is: 59,902.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,219.78 : 109,321.41 = 43,408.06 : x
  2. Step 2: Convert to fraction form
    79,219.78/109,321.41 = 43,408.06/x
  3. Step 3: Cross multiply
    79,219.78x = 109,321.41 × 43,408.06
  4. Step 4: Simplify right side
    79,219.78x = 4,745,430,324.56
  5. Step 5: Solve for x
    x = 4,745,430,324.56/79,219.78
  6. Step 6: Final answer
    x = 59,902.09

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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.