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Finding the Fourth Proportional to 68,006.69, 102,009.89 and 18,086.79

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Solution

The fourth proportional to 68,006.69, 102,009.89 and 18,086.79 is: 27,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,006.69 : 102,009.89 = 18,086.79 : x
  2. Step 2: Convert to fraction form
    68,006.69/102,009.89 = 18,086.79/x
  3. Step 3: Cross multiply
    68,006.69x = 102,009.89 × 18,086.79
  4. Step 4: Simplify right side
    68,006.69x = 1,845,031,367.92
  5. Step 5: Solve for x
    x = 1,845,031,367.92/68,006.69
  6. Step 6: Final answer
    x = 27,130.15

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1.5x scale

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.