Home / 80,214.48-120,440-44,745.10

Finding the Fourth Proportional to 80,214.48, 120,440 and 44,745.10

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Solution

The fourth proportional to 80,214.48, 120,440 and 44,745.10 is: 67,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,214.48 : 120,440 = 44,745.10 : x
  2. Step 2: Convert to fraction form
    80,214.48/120,440 = 44,745.10/x
  3. Step 3: Cross multiply
    80,214.48x = 120,440 × 44,745.10
  4. Step 4: Simplify right side
    80,214.48x = 5,389,099,844
  5. Step 5: Solve for x
    x = 5,389,099,844/80,214.48
  6. Step 6: Final answer
    x = 67,183.63

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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.