Home / 81,282.33-121,945.41-33,881.67

Finding the Fourth Proportional to 81,282.33, 121,945.41 and 33,881.67

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Solution

The fourth proportional to 81,282.33, 121,945.41 and 33,881.67 is: 50,831.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,282.33 : 121,945.41 = 33,881.67 : x
  2. Step 2: Convert to fraction form
    81,282.33/121,945.41 = 33,881.67/x
  3. Step 3: Cross multiply
    81,282.33x = 121,945.41 × 33,881.67
  4. Step 4: Simplify right side
    81,282.33x = 4,131,714,230.15
  5. Step 5: Solve for x
    x = 4,131,714,230.15/81,282.33
  6. Step 6: Final answer
    x = 50,831.64

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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.