Home / 81,947.48-122,961.46-29,361.20

Finding the Fourth Proportional to 81,947.48, 122,961.46 and 29,361.20

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Solution

The fourth proportional to 81,947.48, 122,961.46 and 29,361.20 is: 44,056.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,947.48 : 122,961.46 = 29,361.20 : x
  2. Step 2: Convert to fraction form
    81,947.48/122,961.46 = 29,361.20/x
  3. Step 3: Cross multiply
    81,947.48x = 122,961.46 × 29,361.20
  4. Step 4: Simplify right side
    81,947.48x = 3,610,296,019.35
  5. Step 5: Solve for x
    x = 3,610,296,019.35/81,947.48
  6. Step 6: Final answer
    x = 44,056.22

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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.