Home / 81,946.40-122,958.60-29,361.20

Finding the Fourth Proportional to 81,946.40, 122,958.60 and 29,361.20

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Solution

The fourth proportional to 81,946.40, 122,958.60 and 29,361.20 is: 44,055.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,946.40 : 122,958.60 = 29,361.20 : x
  2. Step 2: Convert to fraction form
    81,946.40/122,958.60 = 29,361.20/x
  3. Step 3: Cross multiply
    81,946.40x = 122,958.60 × 29,361.20
  4. Step 4: Simplify right side
    81,946.40x = 3,610,212,046.32
  5. Step 5: Solve for x
    x = 3,610,212,046.32/81,946.40
  6. Step 6: Final answer
    x = 44,055.77

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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.