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Finding the Fourth Proportional to 84,753.12, 127,105.44 and 34,152

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Solution

The fourth proportional to 84,753.12, 127,105.44 and 34,152 is: 51,218.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,753.12 : 127,105.44 = 34,152 : x
  2. Step 2: Convert to fraction form
    84,753.12/127,105.44 = 34,152/x
  3. Step 3: Cross multiply
    84,753.12x = 127,105.44 × 34,152
  4. Step 4: Simplify right side
    84,753.12x = 4,340,904,986.88
  5. Step 5: Solve for x
    x = 4,340,904,986.88/84,753.12
  6. Step 6: Final answer
    x = 51,218.23

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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.