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Finding the Fourth Proportional to 81,955.92, 113,064.84 and 50,114.64

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Solution

The fourth proportional to 81,955.92, 113,064.84 and 50,114.64 is: 69,137.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,955.92 : 113,064.84 = 50,114.64 : x
  2. Step 2: Convert to fraction form
    81,955.92/113,064.84 = 50,114.64/x
  3. Step 3: Cross multiply
    81,955.92x = 113,064.84 × 50,114.64
  4. Step 4: Simplify right side
    81,955.92x = 5,666,203,753.26
  5. Step 5: Solve for x
    x = 5,666,203,753.26/81,955.92
  6. Step 6: Final answer
    x = 69,137.21

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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.