Home / 81,869.35-122,760.63-50,293.86

Finding the Fourth Proportional to 81,869.35, 122,760.63 and 50,293.86

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Solution

The fourth proportional to 81,869.35, 122,760.63 and 50,293.86 is: 75,414.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,869.35 : 122,760.63 = 50,293.86 : x
  2. Step 2: Convert to fraction form
    81,869.35/122,760.63 = 50,293.86/x
  3. Step 3: Cross multiply
    81,869.35x = 122,760.63 × 50,293.86
  4. Step 4: Simplify right side
    81,869.35x = 6,174,105,938.73
  5. Step 5: Solve for x
    x = 6,174,105,938.73/81,869.35
  6. Step 6: Final answer
    x = 75,414.13

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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.