Home / 41,121.09-61,685.49-11,538.79

Finding the Fourth Proportional to 41,121.09, 61,685.49 and 11,538.79

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Solution

The fourth proportional to 41,121.09, 61,685.49 and 11,538.79 is: 17,309.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,121.09 : 61,685.49 = 11,538.79 : x
  2. Step 2: Convert to fraction form
    41,121.09/61,685.49 = 11,538.79/x
  3. Step 3: Cross multiply
    41,121.09x = 61,685.49 × 11,538.79
  4. Step 4: Simplify right side
    41,121.09x = 711,775,915.16
  5. Step 5: Solve for x
    x = 711,775,915.16/41,121.09
  6. Step 6: Final answer
    x = 17,309.27

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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.