Home / 45,821.80-68,735.90-18,116.20

Finding the Fourth Proportional to 45,821.80, 68,735.90 and 18,116.20

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Solution

The fourth proportional to 45,821.80, 68,735.90 and 18,116.20 is: 27,175.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,821.80 : 68,735.90 = 18,116.20 : x
  2. Step 2: Convert to fraction form
    45,821.80/68,735.90 = 18,116.20/x
  3. Step 3: Cross multiply
    45,821.80x = 68,735.90 × 18,116.20
  4. Step 4: Simplify right side
    45,821.80x = 1,245,233,311.58
  5. Step 5: Solve for x
    x = 1,245,233,311.58/45,821.80
  6. Step 6: Final answer
    x = 27,175.57

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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.