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Finding the Fourth Proportional to 45,395.78, 68,079.82 and 36,489.98

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Solution

The fourth proportional to 45,395.78, 68,079.82 and 36,489.98 is: 54,723.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,395.78 : 68,079.82 = 36,489.98 : x
  2. Step 2: Convert to fraction form
    45,395.78/68,079.82 = 36,489.98/x
  3. Step 3: Cross multiply
    45,395.78x = 68,079.82 × 36,489.98
  4. Step 4: Simplify right side
    45,395.78x = 2,484,231,270.20
  5. Step 5: Solve for x
    x = 2,484,231,270.20/45,395.78
  6. Step 6: Final answer
    x = 54,723.84

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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.