Home / 81,959.31-122,914.67-35,201.25

Finding the Fourth Proportional to 81,959.31, 122,914.67 and 35,201.25

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Solution

The fourth proportional to 81,959.31, 122,914.67 and 35,201.25 is: 52,791.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,959.31 : 122,914.67 = 35,201.25 : x
  2. Step 2: Convert to fraction form
    81,959.31/122,914.67 = 35,201.25/x
  3. Step 3: Cross multiply
    81,959.31x = 122,914.67 × 35,201.25
  4. Step 4: Simplify right side
    81,959.31x = 4,326,749,851.33
  5. Step 5: Solve for x
    x = 4,326,749,851.33/81,959.31
  6. Step 6: Final answer
    x = 52,791.44

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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.