Home / 68,513.12-102,771.76-18,593.04

Finding the Fourth Proportional to 68,513.12, 102,771.76 and 18,593.04

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Solution

The fourth proportional to 68,513.12, 102,771.76 and 18,593.04 is: 27,890.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,513.12 : 102,771.76 = 18,593.04 : x
  2. Step 2: Convert to fraction form
    68,513.12/102,771.76 = 18,593.04/x
  3. Step 3: Cross multiply
    68,513.12x = 102,771.76 × 18,593.04
  4. Step 4: Simplify right side
    68,513.12x = 1,910,839,444.55
  5. Step 5: Solve for x
    x = 1,910,839,444.55/68,513.12
  6. Step 6: Final answer
    x = 27,890.12

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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.