Home / 81,083.22-121,574.48-33,731.49

Finding the Fourth Proportional to 81,083.22, 121,574.48 and 33,731.49

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Solution

The fourth proportional to 81,083.22, 121,574.48 and 33,731.49 is: 50,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,083.22 : 121,574.48 = 33,731.49 : x
  2. Step 2: Convert to fraction form
    81,083.22/121,574.48 = 33,731.49/x
  3. Step 3: Cross multiply
    81,083.22x = 121,574.48 × 33,731.49
  4. Step 4: Simplify right side
    81,083.22x = 4,100,888,356.38
  5. Step 5: Solve for x
    x = 4,100,888,356.38/81,083.22
  6. Step 6: Final answer
    x = 50,576.29

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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.