Home / 61,299.38-91,942.09-21,310.70

Finding the Fourth Proportional to 61,299.38, 91,942.09 and 21,310.70

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Solution

The fourth proportional to 61,299.38, 91,942.09 and 21,310.70 is: 31,963.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,299.38 : 91,942.09 = 21,310.70 : x
  2. Step 2: Convert to fraction form
    61,299.38/91,942.09 = 21,310.70/x
  3. Step 3: Cross multiply
    61,299.38x = 91,942.09 × 21,310.70
  4. Step 4: Simplify right side
    61,299.38x = 1,959,349,784.38
  5. Step 5: Solve for x
    x = 1,959,349,784.38/61,299.38
  6. Step 6: Final answer
    x = 31,963.61

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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.