Home / 80,850.21-121,228.23-30,933.75

Finding the Fourth Proportional to 80,850.21, 121,228.23 and 30,933.75

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Solution

The fourth proportional to 80,850.21, 121,228.23 and 30,933.75 is: 46,382.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,850.21 : 121,228.23 = 30,933.75 : x
  2. Step 2: Convert to fraction form
    80,850.21/121,228.23 = 30,933.75/x
  3. Step 3: Cross multiply
    80,850.21x = 121,228.23 × 30,933.75
  4. Step 4: Simplify right side
    80,850.21x = 3,750,043,759.76
  5. Step 5: Solve for x
    x = 3,750,043,759.76/80,850.21
  6. Step 6: Final answer
    x = 46,382.61

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1.5x scale

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.