Home / 74,217.65-111,209.69-57,391.79

Finding the Fourth Proportional to 74,217.65, 111,209.69 and 57,391.79

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Solution

The fourth proportional to 74,217.65, 111,209.69 and 57,391.79 is: 85,997.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,217.65 : 111,209.69 = 57,391.79 : x
  2. Step 2: Convert to fraction form
    74,217.65/111,209.69 = 57,391.79/x
  3. Step 3: Cross multiply
    74,217.65x = 111,209.69 × 57,391.79
  4. Step 4: Simplify right side
    74,217.65x = 6,382,522,761.88
  5. Step 5: Solve for x
    x = 6,382,522,761.88/74,217.65
  6. Step 6: Final answer
    x = 85,997.38

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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.