Home / 74,529.12-111,792.69-18,369.90

Finding the Fourth Proportional to 74,529.12, 111,792.69 and 18,369.90

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Solution

The fourth proportional to 74,529.12, 111,792.69 and 18,369.90 is: 27,554.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,529.12 : 111,792.69 = 18,369.90 : x
  2. Step 2: Convert to fraction form
    74,529.12/111,792.69 = 18,369.90/x
  3. Step 3: Cross multiply
    74,529.12x = 111,792.69 × 18,369.90
  4. Step 4: Simplify right side
    74,529.12x = 2,053,620,536.03
  5. Step 5: Solve for x
    x = 2,053,620,536.03/74,529.12
  6. Step 6: Final answer
    x = 27,554.61

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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.