Home / 49,456.78-74,179.68-13,919.23

Finding the Fourth Proportional to 49,456.78, 74,179.68 and 13,919.23

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Solution

The fourth proportional to 49,456.78, 74,179.68 and 13,919.23 is: 20,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,456.78 : 74,179.68 = 13,919.23 : x
  2. Step 2: Convert to fraction form
    49,456.78/74,179.68 = 13,919.23/x
  3. Step 3: Cross multiply
    49,456.78x = 74,179.68 × 13,919.23
  4. Step 4: Simplify right side
    49,456.78x = 1,032,524,027.25
  5. Step 5: Solve for x
    x = 1,032,524,027.25/49,456.78
  6. Step 6: Final answer
    x = 20,877.30

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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.