Home / 74,305.82-111,268.43-40,988.85

Finding the Fourth Proportional to 74,305.82, 111,268.43 and 40,988.85

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Solution

The fourth proportional to 74,305.82, 111,268.43 and 40,988.85 is: 61,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,305.82 : 111,268.43 = 40,988.85 : x
  2. Step 2: Convert to fraction form
    74,305.82/111,268.43 = 40,988.85/x
  3. Step 3: Cross multiply
    74,305.82x = 111,268.43 × 40,988.85
  4. Step 4: Simplify right side
    74,305.82x = 4,560,764,987.01
  5. Step 5: Solve for x
    x = 4,560,764,987.01/74,305.82
  6. Step 6: Final answer
    x = 61,378.30

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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.