Home / 49,977.78-74,987.49-21,917.97

Finding the Fourth Proportional to 49,977.78, 74,987.49 and 21,917.97

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Solution

The fourth proportional to 49,977.78, 74,987.49 and 21,917.97 is: 32,886.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,977.78 : 74,987.49 = 21,917.97 : x
  2. Step 2: Convert to fraction form
    49,977.78/74,987.49 = 21,917.97/x
  3. Step 3: Cross multiply
    49,977.78x = 74,987.49 × 21,917.97
  4. Step 4: Simplify right side
    49,977.78x = 1,643,573,434.39
  5. Step 5: Solve for x
    x = 1,643,573,434.39/49,977.78
  6. Step 6: Final answer
    x = 32,886.09

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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.