Home / 81,610.20-122,181.70-50,234.20

Finding the Fourth Proportional to 81,610.20, 122,181.70 and 50,234.20

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Solution

The fourth proportional to 81,610.20, 122,181.70 and 50,234.20 is: 75,207.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,610.20 : 122,181.70 = 50,234.20 : x
  2. Step 2: Convert to fraction form
    81,610.20/122,181.70 = 50,234.20/x
  3. Step 3: Cross multiply
    81,610.20x = 122,181.70 × 50,234.20
  4. Step 4: Simplify right side
    81,610.20x = 6,137,699,954.14
  5. Step 5: Solve for x
    x = 6,137,699,954.14/81,610.20
  6. Step 6: Final answer
    x = 75,207.51

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1.5x scale

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.