Home / 74,620.08-111,930-51,175.44

Finding the Fourth Proportional to 74,620.08, 111,930 and 51,175.44

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Solution

The fourth proportional to 74,620.08, 111,930 and 51,175.44 is: 76,763.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,620.08 : 111,930 = 51,175.44 : x
  2. Step 2: Convert to fraction form
    74,620.08/111,930 = 51,175.44/x
  3. Step 3: Cross multiply
    74,620.08x = 111,930 × 51,175.44
  4. Step 4: Simplify right side
    74,620.08x = 5,728,066,999.20
  5. Step 5: Solve for x
    x = 5,728,066,999.20/74,620.08
  6. Step 6: Final answer
    x = 76,763.08

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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.