Home / 81,016.96-121,553.40-33,657.49

Finding the Fourth Proportional to 81,016.96, 121,553.40 and 33,657.49

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Solution

The fourth proportional to 81,016.96, 121,553.40 and 33,657.49 is: 50,497.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,016.96 : 121,553.40 = 33,657.49 : x
  2. Step 2: Convert to fraction form
    81,016.96/121,553.40 = 33,657.49/x
  3. Step 3: Cross multiply
    81,016.96x = 121,553.40 × 33,657.49
  4. Step 4: Simplify right side
    81,016.96x = 4,091,182,344.97
  5. Step 5: Solve for x
    x = 4,091,182,344.97/81,016.96
  6. Step 6: Final answer
    x = 50,497.85

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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.