Home / 81,716.28-122,571.09-22,550.45

Finding the Fourth Proportional to 81,716.28, 122,571.09 and 22,550.45

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Solution

The fourth proportional to 81,716.28, 122,571.09 and 22,550.45 is: 33,824.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,716.28 : 122,571.09 = 22,550.45 : x
  2. Step 2: Convert to fraction form
    81,716.28/122,571.09 = 22,550.45/x
  3. Step 3: Cross multiply
    81,716.28x = 122,571.09 × 22,550.45
  4. Step 4: Simplify right side
    81,716.28x = 2,764,032,623.64
  5. Step 5: Solve for x
    x = 2,764,032,623.64/81,716.28
  6. Step 6: Final answer
    x = 33,824.75

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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.