Home / 62,728.75-94,107.71-21,175.75

Finding the Fourth Proportional to 62,728.75, 94,107.71 and 21,175.75

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Solution

The fourth proportional to 62,728.75, 94,107.71 and 21,175.75 is: 31,768.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,728.75 : 94,107.71 = 21,175.75 : x
  2. Step 2: Convert to fraction form
    62,728.75/94,107.71 = 21,175.75/x
  3. Step 3: Cross multiply
    62,728.75x = 94,107.71 × 21,175.75
  4. Step 4: Simplify right side
    62,728.75x = 1,992,801,340.03
  5. Step 5: Solve for x
    x = 1,992,801,340.03/62,728.75
  6. Step 6: Final answer
    x = 31,768.55

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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.