Home / 74,535.12-111,845.73-39,474.78

Finding the Fourth Proportional to 74,535.12, 111,845.73 and 39,474.78

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Solution

The fourth proportional to 74,535.12, 111,845.73 and 39,474.78 is: 59,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,535.12 : 111,845.73 = 39,474.78 : x
  2. Step 2: Convert to fraction form
    74,535.12/111,845.73 = 39,474.78/x
  3. Step 3: Cross multiply
    74,535.12x = 111,845.73 × 39,474.78
  4. Step 4: Simplify right side
    74,535.12x = 4,415,085,585.69
  5. Step 5: Solve for x
    x = 4,415,085,585.69/74,535.12
  6. Step 6: Final answer
    x = 59,234.97

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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.