Home / 74,408.22-111,610.89-21,816.54

Finding the Fourth Proportional to 74,408.22, 111,610.89 and 21,816.54

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Solution

The fourth proportional to 74,408.22, 111,610.89 and 21,816.54 is: 32,724.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,408.22 : 111,610.89 = 21,816.54 : x
  2. Step 2: Convert to fraction form
    74,408.22/111,610.89 = 21,816.54/x
  3. Step 3: Cross multiply
    74,408.22x = 111,610.89 × 21,816.54
  4. Step 4: Simplify right side
    74,408.22x = 2,434,963,446.12
  5. Step 5: Solve for x
    x = 2,434,963,446.12/74,408.22
  6. Step 6: Final answer
    x = 32,724.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.