Home / 74,292.53-111,471.69-30,005.78

Finding the Fourth Proportional to 74,292.53, 111,471.69 and 30,005.78

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Solution

The fourth proportional to 74,292.53, 111,471.69 and 30,005.78 is: 45,021.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,292.53 : 111,471.69 = 30,005.78 : x
  2. Step 2: Convert to fraction form
    74,292.53/111,471.69 = 30,005.78/x
  3. Step 3: Cross multiply
    74,292.53x = 111,471.69 × 30,005.78
  4. Step 4: Simplify right side
    74,292.53x = 3,344,794,449.01
  5. Step 5: Solve for x
    x = 3,344,794,449.01/74,292.53
  6. Step 6: Final answer
    x = 45,021.95

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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.