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Finding the Fourth Proportional to 45,997.89, 68,996.70 and 12,717.87

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Solution

The fourth proportional to 45,997.89, 68,996.70 and 12,717.87 is: 19,076.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,997.89 : 68,996.70 = 12,717.87 : x
  2. Step 2: Convert to fraction form
    45,997.89/68,996.70 = 12,717.87/x
  3. Step 3: Cross multiply
    45,997.89x = 68,996.70 × 12,717.87
  4. Step 4: Simplify right side
    45,997.89x = 877,491,061.03
  5. Step 5: Solve for x
    x = 877,491,061.03/45,997.89
  6. Step 6: Final answer
    x = 19,076.77

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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.