Home / 81,377.05-122,083.01-25,215.93

Finding the Fourth Proportional to 81,377.05, 122,083.01 and 25,215.93

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Solution

The fourth proportional to 81,377.05, 122,083.01 and 25,215.93 is: 37,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,377.05 : 122,083.01 = 25,215.93 : x
  2. Step 2: Convert to fraction form
    81,377.05/122,083.01 = 25,215.93/x
  3. Step 3: Cross multiply
    81,377.05x = 122,083.01 × 25,215.93
  4. Step 4: Simplify right side
    81,377.05x = 3,078,436,634.35
  5. Step 5: Solve for x
    x = 3,078,436,634.35/81,377.05
  6. Step 6: Final answer
    x = 37,829.30

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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.