Home / 81,189.21-121,827.33-33,837.06

Finding the Fourth Proportional to 81,189.21, 121,827.33 and 33,837.06

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Solution

The fourth proportional to 81,189.21, 121,827.33 and 33,837.06 is: 50,773.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,189.21 : 121,827.33 = 33,837.06 : x
  2. Step 2: Convert to fraction form
    81,189.21/121,827.33 = 33,837.06/x
  3. Step 3: Cross multiply
    81,189.21x = 121,827.33 × 33,837.06
  4. Step 4: Simplify right side
    81,189.21x = 4,122,278,674.85
  5. Step 5: Solve for x
    x = 4,122,278,674.85/81,189.21
  6. Step 6: Final answer
    x = 50,773.73

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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.