Home / 81,858.26-122,787.40-29,264.56

Finding the Fourth Proportional to 81,858.26, 122,787.40 and 29,264.56

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Solution

The fourth proportional to 81,858.26, 122,787.40 and 29,264.56 is: 43,896.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,858.26 : 122,787.40 = 29,264.56 : x
  2. Step 2: Convert to fraction form
    81,858.26/122,787.40 = 29,264.56/x
  3. Step 3: Cross multiply
    81,858.26x = 122,787.40 × 29,264.56
  4. Step 4: Simplify right side
    81,858.26x = 3,593,319,234.54
  5. Step 5: Solve for x
    x = 3,593,319,234.54/81,858.26
  6. Step 6: Final answer
    x = 43,896.84

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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.