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Finding the Fourth Proportional to 45,427.80, 68,114.70 and 27,910.20

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Solution

The fourth proportional to 45,427.80, 68,114.70 and 27,910.20 is: 41,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,427.80 : 68,114.70 = 27,910.20 : x
  2. Step 2: Convert to fraction form
    45,427.80/68,114.70 = 27,910.20/x
  3. Step 3: Cross multiply
    45,427.80x = 68,114.70 × 27,910.20
  4. Step 4: Simplify right side
    45,427.80x = 1,901,094,899.94
  5. Step 5: Solve for x
    x = 1,901,094,899.94/45,427.80
  6. Step 6: Final answer
    x = 41,848.71

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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.