Home / 68,542.16-102,815.27-18,622.00

Finding the Fourth Proportional to 68,542.16, 102,815.27 and 18,622.00

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Solution

The fourth proportional to 68,542.16, 102,815.27 and 18,622.00 is: 27,933.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,542.16 : 102,815.27 = 18,622.00 : x
  2. Step 2: Convert to fraction form
    68,542.16/102,815.27 = 18,622.00/x
  3. Step 3: Cross multiply
    68,542.16x = 102,815.27 × 18,622.00
  4. Step 4: Simplify right side
    68,542.16x = 1,914,625,350.75
  5. Step 5: Solve for x
    x = 1,914,625,350.75/68,542.16
  6. Step 6: Final answer
    x = 27,933.54

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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.