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Finding the Fourth Proportional to 45,486.39, 68,236.89 and 19,195.02

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Solution

The fourth proportional to 45,486.39, 68,236.89 and 19,195.02 is: 28,795.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,486.39 : 68,236.89 = 19,195.02 : x
  2. Step 2: Convert to fraction form
    45,486.39/68,236.89 = 19,195.02/x
  3. Step 3: Cross multiply
    45,486.39x = 68,236.89 × 19,195.02
  4. Step 4: Simplify right side
    45,486.39x = 1,309,808,468.29
  5. Step 5: Solve for x
    x = 1,309,808,468.29/45,486.39
  6. Step 6: Final answer
    x = 28,795.61

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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.