Home / 80,772.54-121,150.17-28,183.02

Finding the Fourth Proportional to 80,772.54, 121,150.17 and 28,183.02

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Solution

The fourth proportional to 80,772.54, 121,150.17 and 28,183.02 is: 42,271.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,772.54 : 121,150.17 = 28,183.02 : x
  2. Step 2: Convert to fraction form
    80,772.54/121,150.17 = 28,183.02/x
  3. Step 3: Cross multiply
    80,772.54x = 121,150.17 × 28,183.02
  4. Step 4: Simplify right side
    80,772.54x = 3,414,377,664.11
  5. Step 5: Solve for x
    x = 3,414,377,664.11/80,772.54
  6. Step 6: Final answer
    x = 42,271.52

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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.