Home / 81,884.75-122,630.29-46,717.79

Finding the Fourth Proportional to 81,884.75, 122,630.29 and 46,717.79

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Solution

The fourth proportional to 81,884.75, 122,630.29 and 46,717.79 is: 69,964.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,884.75 : 122,630.29 = 46,717.79 : x
  2. Step 2: Convert to fraction form
    81,884.75/122,630.29 = 46,717.79/x
  3. Step 3: Cross multiply
    81,884.75x = 122,630.29 × 46,717.79
  4. Step 4: Simplify right side
    81,884.75x = 5,729,015,289.12
  5. Step 5: Solve for x
    x = 5,729,015,289.12/81,884.75
  6. Step 6: Final answer
    x = 69,964.38

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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.