Home / 81,299.20-121,869.48-33,927.94

Finding the Fourth Proportional to 81,299.20, 121,869.48 and 33,927.94

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Solution

The fourth proportional to 81,299.20, 121,869.48 and 33,927.94 is: 50,858.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,299.20 : 121,869.48 = 33,927.94 : x
  2. Step 2: Convert to fraction form
    81,299.20/121,869.48 = 33,927.94/x
  3. Step 3: Cross multiply
    81,299.20x = 121,869.48 × 33,927.94
  4. Step 4: Simplify right side
    81,299.20x = 4,134,780,405.27
  5. Step 5: Solve for x
    x = 4,134,780,405.27/81,299.20
  6. Step 6: Final answer
    x = 50,858.81

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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.