Home / 74,647.22-111,977.19-21,340.04

Finding the Fourth Proportional to 74,647.22, 111,977.19 and 21,340.04

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Solution

The fourth proportional to 74,647.22, 111,977.19 and 21,340.04 is: 32,011.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,647.22 : 111,977.19 = 21,340.04 : x
  2. Step 2: Convert to fraction form
    74,647.22/111,977.19 = 21,340.04/x
  3. Step 3: Cross multiply
    74,647.22x = 111,977.19 × 21,340.04
  4. Step 4: Simplify right side
    74,647.22x = 2,389,597,153.80
  5. Step 5: Solve for x
    x = 2,389,597,153.80/74,647.22
  6. Step 6: Final answer
    x = 32,011.87

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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.