Home / 81,584.48-122,378.07-22,419.79

Finding the Fourth Proportional to 81,584.48, 122,378.07 and 22,419.79

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Solution

The fourth proportional to 81,584.48, 122,378.07 and 22,419.79 is: 33,630.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,584.48 : 122,378.07 = 22,419.79 : x
  2. Step 2: Convert to fraction form
    81,584.48/122,378.07 = 22,419.79/x
  3. Step 3: Cross multiply
    81,584.48x = 122,378.07 × 22,419.79
  4. Step 4: Simplify right side
    81,584.48x = 2,743,690,630.01
  5. Step 5: Solve for x
    x = 2,743,690,630.01/81,584.48
  6. Step 6: Final answer
    x = 33,630.06

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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.