Home / 74,063.31-111,021.12-47,786.51

Finding the Fourth Proportional to 74,063.31, 111,021.12 and 47,786.51

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Solution

The fourth proportional to 74,063.31, 111,021.12 and 47,786.51 is: 71,632.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,063.31 : 111,021.12 = 47,786.51 : x
  2. Step 2: Convert to fraction form
    74,063.31/111,021.12 = 47,786.51/x
  3. Step 3: Cross multiply
    74,063.31x = 111,021.12 × 47,786.51
  4. Step 4: Simplify right side
    74,063.31x = 5,305,311,861.09
  5. Step 5: Solve for x
    x = 5,305,311,861.09/74,063.31
  6. Step 6: Final answer
    x = 71,632.12

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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.