Home / 68,021.98-102,032.82-18,102.05

Finding the Fourth Proportional to 68,021.98, 102,032.82 and 18,102.05

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Solution

The fourth proportional to 68,021.98, 102,032.82 and 18,102.05 is: 27,153.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,021.98 : 102,032.82 = 18,102.05 : x
  2. Step 2: Convert to fraction form
    68,021.98/102,032.82 = 18,102.05/x
  3. Step 3: Cross multiply
    68,021.98x = 102,032.82 × 18,102.05
  4. Step 4: Simplify right side
    68,021.98x = 1,847,003,209.28
  5. Step 5: Solve for x
    x = 1,847,003,209.28/68,021.98
  6. Step 6: Final answer
    x = 27,153.04

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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.