Home / 81,884.18-122,629.44-46,717.22

Finding the Fourth Proportional to 81,884.18, 122,629.44 and 46,717.22

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Solution

The fourth proportional to 81,884.18, 122,629.44 and 46,717.22 is: 69,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,884.18 : 122,629.44 = 46,717.22 : x
  2. Step 2: Convert to fraction form
    81,884.18/122,629.44 = 46,717.22/x
  3. Step 3: Cross multiply
    81,884.18x = 122,629.44 × 46,717.22
  4. Step 4: Simplify right side
    81,884.18x = 5,728,907,008.72
  5. Step 5: Solve for x
    x = 5,728,907,008.72/81,884.18
  6. Step 6: Final answer
    x = 69,963.54

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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.