Home / 81,216.66-121,743.18-33,857.96

Finding the Fourth Proportional to 81,216.66, 121,743.18 and 33,857.96

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Solution

The fourth proportional to 81,216.66, 121,743.18 and 33,857.96 is: 50,752.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,216.66 : 121,743.18 = 33,857.96 : x
  2. Step 2: Convert to fraction form
    81,216.66/121,743.18 = 33,857.96/x
  3. Step 3: Cross multiply
    81,216.66x = 121,743.18 × 33,857.96
  4. Step 4: Simplify right side
    81,216.66x = 4,121,975,110.00
  5. Step 5: Solve for x
    x = 4,121,975,110.00/81,216.66
  6. Step 6: Final answer
    x = 50,752.83

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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.