Home / 74,286.54-111,428.70-29,912.16

Finding the Fourth Proportional to 74,286.54, 111,428.70 and 29,912.16

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Solution

The fourth proportional to 74,286.54, 111,428.70 and 29,912.16 is: 44,867.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,286.54 : 111,428.70 = 29,912.16 : x
  2. Step 2: Convert to fraction form
    74,286.54/111,428.70 = 29,912.16/x
  3. Step 3: Cross multiply
    74,286.54x = 111,428.70 × 29,912.16
  4. Step 4: Simplify right side
    74,286.54x = 3,333,073,408.68
  5. Step 5: Solve for x
    x = 3,333,073,408.68/74,286.54
  6. Step 6: Final answer
    x = 44,867.80

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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.