Home / 49,396.81-74,042.07-21,330.09

Finding the Fourth Proportional to 49,396.81, 74,042.07 and 21,330.09

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Solution

The fourth proportional to 49,396.81, 74,042.07 and 21,330.09 is: 31,972.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,396.81 : 74,042.07 = 21,330.09 : x
  2. Step 2: Convert to fraction form
    49,396.81/74,042.07 = 21,330.09/x
  3. Step 3: Cross multiply
    49,396.81x = 74,042.07 × 21,330.09
  4. Step 4: Simplify right side
    49,396.81x = 1,579,324,016.89
  5. Step 5: Solve for x
    x = 1,579,324,016.89/49,396.81
  6. Step 6: Final answer
    x = 31,972.19

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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.