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Finding the Fourth Proportional to 81,951.76, 113,096.92 and 45,653.16

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Solution

The fourth proportional to 81,951.76, 113,096.92 and 45,653.16 is: 63,003.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,951.76 : 113,096.92 = 45,653.16 : x
  2. Step 2: Convert to fraction form
    81,951.76/113,096.92 = 45,653.16/x
  3. Step 3: Cross multiply
    81,951.76x = 113,096.92 × 45,653.16
  4. Step 4: Simplify right side
    81,951.76x = 5,163,231,952.88
  5. Step 5: Solve for x
    x = 5,163,231,952.88/81,951.76
  6. Step 6: Final answer
    x = 63,003.31

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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.