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Finding the Fourth Proportional to 45,549, 68,335.02 and 12,717

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Solution

The fourth proportional to 45,549, 68,335.02 and 12,717 is: 19,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,549 : 68,335.02 = 12,717 : x
  2. Step 2: Convert to fraction form
    45,549/68,335.02 = 12,717/x
  3. Step 3: Cross multiply
    45,549x = 68,335.02 × 12,717
  4. Step 4: Simplify right side
    45,549x = 869,016,449.34
  5. Step 5: Solve for x
    x = 869,016,449.34/45,549
  6. Step 6: Final answer
    x = 19,078.72

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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.