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Finding the Fourth Proportional to 68,006.65, 102,009.82 and 18,086.76

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Solution

The fourth proportional to 68,006.65, 102,009.82 and 18,086.76 is: 27,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,006.65 : 102,009.82 = 18,086.76 : x
  2. Step 2: Convert to fraction form
    68,006.65/102,009.82 = 18,086.76/x
  3. Step 3: Cross multiply
    68,006.65x = 102,009.82 × 18,086.76
  4. Step 4: Simplify right side
    68,006.65x = 1,845,027,131.98
  5. Step 5: Solve for x
    x = 1,845,027,131.98/68,006.65
  6. Step 6: Final answer
    x = 27,130.10

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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.