Home / 49,739-74,629.38-20,177.96

Finding the Fourth Proportional to 49,739, 74,629.38 and 20,177.96

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Solution

The fourth proportional to 49,739, 74,629.38 and 20,177.96 is: 30,275.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,739 : 74,629.38 = 20,177.96 : x
  2. Step 2: Convert to fraction form
    49,739/74,629.38 = 20,177.96/x
  3. Step 3: Cross multiply
    49,739x = 74,629.38 × 20,177.96
  4. Step 4: Simplify right side
    49,739x = 1,505,868,644.46
  5. Step 5: Solve for x
    x = 1,505,868,644.46/49,739
  6. Step 6: Final answer
    x = 30,275.41

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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.