Home / 81,122.18-121,759.62-41,169.86

Finding the Fourth Proportional to 81,122.18, 121,759.62 and 41,169.86

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Solution

The fourth proportional to 81,122.18, 121,759.62 and 41,169.86 is: 61,793.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,122.18 : 121,759.62 = 41,169.86 : x
  2. Step 2: Convert to fraction form
    81,122.18/121,759.62 = 41,169.86/x
  3. Step 3: Cross multiply
    81,122.18x = 121,759.62 × 41,169.86
  4. Step 4: Simplify right side
    81,122.18x = 5,012,826,813.45
  5. Step 5: Solve for x
    x = 5,012,826,813.45/81,122.18
  6. Step 6: Final answer
    x = 61,793.54

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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.