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Finding the Fourth Proportional to 68,502.33, 102,751.07 and 18,590.13

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Solution

The fourth proportional to 68,502.33, 102,751.07 and 18,590.13 is: 27,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,502.33 : 102,751.07 = 18,590.13 : x
  2. Step 2: Convert to fraction form
    68,502.33/102,751.07 = 18,590.13/x
  3. Step 3: Cross multiply
    68,502.33x = 102,751.07 × 18,590.13
  4. Step 4: Simplify right side
    68,502.33x = 1,910,155,655.99
  5. Step 5: Solve for x
    x = 1,910,155,655.99/68,502.33
  6. Step 6: Final answer
    x = 27,884.54

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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.