Home / 81,301.41-121,974.08-33,900.84

Finding the Fourth Proportional to 81,301.41, 121,974.08 and 33,900.84

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Solution

The fourth proportional to 81,301.41, 121,974.08 and 33,900.84 is: 50,860.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,301.41 : 121,974.08 = 33,900.84 : x
  2. Step 2: Convert to fraction form
    81,301.41/121,974.08 = 33,900.84/x
  3. Step 3: Cross multiply
    81,301.41x = 121,974.08 × 33,900.84
  4. Step 4: Simplify right side
    81,301.41x = 4,135,023,600.72
  5. Step 5: Solve for x
    x = 4,135,023,600.72/81,301.41
  6. Step 6: Final answer
    x = 50,860.42

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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.