Home / 74,502.82-111,754.14-30,129.22

Finding the Fourth Proportional to 74,502.82, 111,754.14 and 30,129.22

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Solution

The fourth proportional to 74,502.82, 111,754.14 and 30,129.22 is: 45,193.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,502.82 : 111,754.14 = 30,129.22 : x
  2. Step 2: Convert to fraction form
    74,502.82/111,754.14 = 30,129.22/x
  3. Step 3: Cross multiply
    74,502.82x = 111,754.14 × 30,129.22
  4. Step 4: Simplify right side
    74,502.82x = 3,367,065,069.97
  5. Step 5: Solve for x
    x = 3,367,065,069.97/74,502.82
  6. Step 6: Final answer
    x = 45,193.79

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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.