Home / 71,581.16-107,371.61-18,273.13

Finding the Fourth Proportional to 71,581.16, 107,371.61 and 18,273.13

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Solution

The fourth proportional to 71,581.16, 107,371.61 and 18,273.13 is: 27,409.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,581.16 : 107,371.61 = 18,273.13 : x
  2. Step 2: Convert to fraction form
    71,581.16/107,371.61 = 18,273.13/x
  3. Step 3: Cross multiply
    71,581.16x = 107,371.61 × 18,273.13
  4. Step 4: Simplify right side
    71,581.16x = 1,962,014,759.62
  5. Step 5: Solve for x
    x = 1,962,014,759.62/71,581.16
  6. Step 6: Final answer
    x = 27,409.65

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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.