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Finding the Fourth Proportional to 45,190.78, 62,363.22 and 25,318.78

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Solution

The fourth proportional to 45,190.78, 62,363.22 and 25,318.78 is: 34,939.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,190.78 : 62,363.22 = 25,318.78 : x
  2. Step 2: Convert to fraction form
    45,190.78/62,363.22 = 25,318.78/x
  3. Step 3: Cross multiply
    45,190.78x = 62,363.22 × 25,318.78
  4. Step 4: Simplify right side
    45,190.78x = 1,578,960,647.27
  5. Step 5: Solve for x
    x = 1,578,960,647.27/45,190.78
  6. Step 6: Final answer
    x = 34,939.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.