Home / 81,151.26-121,770.62-33,799.06

Finding the Fourth Proportional to 81,151.26, 121,770.62 and 33,799.06

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Solution

The fourth proportional to 81,151.26, 121,770.62 and 33,799.06 is: 50,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,151.26 : 121,770.62 = 33,799.06 : x
  2. Step 2: Convert to fraction form
    81,151.26/121,770.62 = 33,799.06/x
  3. Step 3: Cross multiply
    81,151.26x = 121,770.62 × 33,799.06
  4. Step 4: Simplify right side
    81,151.26x = 4,115,732,491.62
  5. Step 5: Solve for x
    x = 4,115,732,491.62/81,151.26
  6. Step 6: Final answer
    x = 50,716.80

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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.