Home / 65,882.14-90,917.50-35,667.78

Finding the Fourth Proportional to 65,882.14, 90,917.50 and 35,667.78

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Solution

The fourth proportional to 65,882.14, 90,917.50 and 35,667.78 is: 49,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,882.14 : 90,917.50 = 35,667.78 : x
  2. Step 2: Convert to fraction form
    65,882.14/90,917.50 = 35,667.78/x
  3. Step 3: Cross multiply
    65,882.14x = 90,917.50 × 35,667.78
  4. Step 4: Simplify right side
    65,882.14x = 3,242,825,388.15
  5. Step 5: Solve for x
    x = 3,242,825,388.15/65,882.14
  6. Step 6: Final answer
    x = 49,221.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.