Home / 81,524.43-122,181.36-36,512.89

Finding the Fourth Proportional to 81,524.43, 122,181.36 and 36,512.89

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Solution

The fourth proportional to 81,524.43, 122,181.36 and 36,512.89 is: 54,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,524.43 : 122,181.36 = 36,512.89 : x
  2. Step 2: Convert to fraction form
    81,524.43/122,181.36 = 36,512.89/x
  3. Step 3: Cross multiply
    81,524.43x = 122,181.36 × 36,512.89
  4. Step 4: Simplify right side
    81,524.43x = 4,461,194,557.73
  5. Step 5: Solve for x
    x = 4,461,194,557.73/81,524.43
  6. Step 6: Final answer
    x = 54,722.18

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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.