Home / 79,021.92-118,532.76-36,322.56

Finding the Fourth Proportional to 79,021.92, 118,532.76 and 36,322.56

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Solution

The fourth proportional to 79,021.92, 118,532.76 and 36,322.56 is: 54,483.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,021.92 : 118,532.76 = 36,322.56 : x
  2. Step 2: Convert to fraction form
    79,021.92/118,532.76 = 36,322.56/x
  3. Step 3: Cross multiply
    79,021.92x = 118,532.76 × 36,322.56
  4. Step 4: Simplify right side
    79,021.92x = 4,305,413,287.07
  5. Step 5: Solve for x
    x = 4,305,413,287.07/79,021.92
  6. Step 6: Final answer
    x = 54,483.78

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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.