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Finding the Fourth Proportional to 68,009.43, 102,014.02 and 18,089.58

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Solution

The fourth proportional to 68,009.43, 102,014.02 and 18,089.58 is: 27,134.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,009.43 : 102,014.02 = 18,089.58 : x
  2. Step 2: Convert to fraction form
    68,009.43/102,014.02 = 18,089.58/x
  3. Step 3: Cross multiply
    68,009.43x = 102,014.02 × 18,089.58
  4. Step 4: Simplify right side
    68,009.43x = 1,845,391,181.08
  5. Step 5: Solve for x
    x = 1,845,391,181.08/68,009.43
  6. Step 6: Final answer
    x = 27,134.34

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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.