Home / 45,428.80-68,116.20-27,911.20

Finding the Fourth Proportional to 45,428.80, 68,116.20 and 27,911.20

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Solution

The fourth proportional to 45,428.80, 68,116.20 and 27,911.20 is: 41,850.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,428.80 : 68,116.20 = 27,911.20 : x
  2. Step 2: Convert to fraction form
    45,428.80/68,116.20 = 27,911.20/x
  3. Step 3: Cross multiply
    45,428.80x = 68,116.20 × 27,911.20
  4. Step 4: Simplify right side
    45,428.80x = 1,901,204,881.44
  5. Step 5: Solve for x
    x = 1,901,204,881.44/45,428.80
  6. Step 6: Final answer
    x = 41,850.21

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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.