Home / 74,507.24-111,782.84-30,165.82

Finding the Fourth Proportional to 74,507.24, 111,782.84 and 30,165.82

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Solution

The fourth proportional to 74,507.24, 111,782.84 and 30,165.82 is: 45,257.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,507.24 : 111,782.84 = 30,165.82 : x
  2. Step 2: Convert to fraction form
    74,507.24/111,782.84 = 30,165.82/x
  3. Step 3: Cross multiply
    74,507.24x = 111,782.84 × 30,165.82
  4. Step 4: Simplify right side
    74,507.24x = 3,372,020,600.24
  5. Step 5: Solve for x
    x = 3,372,020,600.24/74,507.24
  6. Step 6: Final answer
    x = 45,257.62

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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.