Home / 81,093.35-121,625.15-21,933.79

Finding the Fourth Proportional to 81,093.35, 121,625.15 and 21,933.79

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Solution

The fourth proportional to 81,093.35, 121,625.15 and 21,933.79 is: 32,896.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,093.35 : 121,625.15 = 21,933.79 : x
  2. Step 2: Convert to fraction form
    81,093.35/121,625.15 = 21,933.79/x
  3. Step 3: Cross multiply
    81,093.35x = 121,625.15 × 21,933.79
  4. Step 4: Simplify right side
    81,093.35x = 2,667,700,085.09
  5. Step 5: Solve for x
    x = 2,667,700,085.09/81,093.35
  6. Step 6: Final answer
    x = 32,896.66

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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.