Home / 81,996.20-122,958.30-37,608.20

Finding the Fourth Proportional to 81,996.20, 122,958.30 and 37,608.20

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Solution

The fourth proportional to 81,996.20, 122,958.30 and 37,608.20 is: 56,395.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,996.20 : 122,958.30 = 37,608.20 : x
  2. Step 2: Convert to fraction form
    81,996.20/122,958.30 = 37,608.20/x
  3. Step 3: Cross multiply
    81,996.20x = 122,958.30 × 37,608.20
  4. Step 4: Simplify right side
    81,996.20x = 4,624,240,338.06
  5. Step 5: Solve for x
    x = 4,624,240,338.06/81,996.20
  6. Step 6: Final answer
    x = 56,395.79

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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.