Home / 49,800.78-68,725.09-27,139.78

Finding the Fourth Proportional to 49,800.78, 68,725.09 and 27,139.78

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Solution

The fourth proportional to 49,800.78, 68,725.09 and 27,139.78 is: 37,452.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,800.78 : 68,725.09 = 27,139.78 : x
  2. Step 2: Convert to fraction form
    49,800.78/68,725.09 = 27,139.78/x
  3. Step 3: Cross multiply
    49,800.78x = 68,725.09 × 27,139.78
  4. Step 4: Simplify right side
    49,800.78x = 1,865,183,343.76
  5. Step 5: Solve for x
    x = 1,865,183,343.76/49,800.78
  6. Step 6: Final answer
    x = 37,452.89

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1.5x scale

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.