Home / 77,442.75-116,150.22-20,517.03

Finding the Fourth Proportional to 77,442.75, 116,150.22 and 20,517.03

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Solution

The fourth proportional to 77,442.75, 116,150.22 and 20,517.03 is: 30,771.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,442.75 : 116,150.22 = 20,517.03 : x
  2. Step 2: Convert to fraction form
    77,442.75/116,150.22 = 20,517.03/x
  3. Step 3: Cross multiply
    77,442.75x = 116,150.22 × 20,517.03
  4. Step 4: Simplify right side
    77,442.75x = 2,383,057,548.25
  5. Step 5: Solve for x
    x = 2,383,057,548.25/77,442.75
  6. Step 6: Final answer
    x = 30,771.86

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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.