Home / 49,778.72-74,610.29-20,159.72

Finding the Fourth Proportional to 49,778.72, 74,610.29 and 20,159.72

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Solution

The fourth proportional to 49,778.72, 74,610.29 and 20,159.72 is: 30,216.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,778.72 : 74,610.29 = 20,159.72 : x
  2. Step 2: Convert to fraction form
    49,778.72/74,610.29 = 20,159.72/x
  3. Step 3: Cross multiply
    49,778.72x = 74,610.29 × 20,159.72
  4. Step 4: Simplify right side
    49,778.72x = 1,504,122,232.87
  5. Step 5: Solve for x
    x = 1,504,122,232.87/49,778.72
  6. Step 6: Final answer
    x = 30,216.17

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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.