Home / 281,717.60-422,591.78-71,357.36

Finding the Fourth Proportional to 281,717.60, 422,591.78 and 71,357.36

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Solution

The fourth proportional to 281,717.60, 422,591.78 and 71,357.36 is: 107,039.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,717.60 : 422,591.78 = 71,357.36 : x
  2. Step 2: Convert to fraction form
    281,717.60/422,591.78 = 71,357.36/x
  3. Step 3: Cross multiply
    281,717.60x = 422,591.78 × 71,357.36
  4. Step 4: Simplify right side
    281,717.60x = 30,155,031,843.94
  5. Step 5: Solve for x
    x = 30,155,031,843.94/281,717.60
  6. Step 6: Final answer
    x = 107,039.93

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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.