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Finding the Fourth Proportional to 68,887.28, 95,040 and 45,027.74

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Solution

The fourth proportional to 68,887.28, 95,040 and 45,027.74 is: 62,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,887.28 : 95,040 = 45,027.74 : x
  2. Step 2: Convert to fraction form
    68,887.28/95,040 = 45,027.74/x
  3. Step 3: Cross multiply
    68,887.28x = 95,040 × 45,027.74
  4. Step 4: Simplify right side
    68,887.28x = 4,279,436,409.60
  5. Step 5: Solve for x
    x = 4,279,436,409.60/68,887.28
  6. Step 6: Final answer
    x = 62,122.30

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Why These Related Problems?

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