Home / 81,963.09-122,922.36-35,205.03

Finding the Fourth Proportional to 81,963.09, 122,922.36 and 35,205.03

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Solution

The fourth proportional to 81,963.09, 122,922.36 and 35,205.03 is: 52,797.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,963.09 : 122,922.36 = 35,205.03 : x
  2. Step 2: Convert to fraction form
    81,963.09/122,922.36 = 35,205.03/x
  3. Step 3: Cross multiply
    81,963.09x = 122,922.36 × 35,205.03
  4. Step 4: Simplify right side
    81,963.09x = 4,327,485,371.47
  5. Step 5: Solve for x
    x = 4,327,485,371.47/81,963.09
  6. Step 6: Final answer
    x = 52,797.98

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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.