Home / 71,190.26-106,786.42-18,599.76

Finding the Fourth Proportional to 71,190.26, 106,786.42 and 18,599.76

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Solution

The fourth proportional to 71,190.26, 106,786.42 and 18,599.76 is: 27,899.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,190.26 : 106,786.42 = 18,599.76 : x
  2. Step 2: Convert to fraction form
    71,190.26/106,786.42 = 18,599.76/x
  3. Step 3: Cross multiply
    71,190.26x = 106,786.42 × 18,599.76
  4. Step 4: Simplify right side
    71,190.26x = 1,986,201,783.26
  5. Step 5: Solve for x
    x = 1,986,201,783.26/71,190.26
  6. Step 6: Final answer
    x = 27,899.91

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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.