Home / 81,779.86-122,629.78-33,739.54

Finding the Fourth Proportional to 81,779.86, 122,629.78 and 33,739.54

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Solution

The fourth proportional to 81,779.86, 122,629.78 and 33,739.54 is: 50,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,779.86 : 122,629.78 = 33,739.54 : x
  2. Step 2: Convert to fraction form
    81,779.86/122,629.78 = 33,739.54/x
  3. Step 3: Cross multiply
    81,779.86x = 122,629.78 × 33,739.54
  4. Step 4: Simplify right side
    81,779.86x = 4,137,472,103.10
  5. Step 5: Solve for x
    x = 4,137,472,103.10/81,779.86
  6. Step 6: Final answer
    x = 50,592.80

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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.