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Finding the Fourth Proportional to 81,164.62, 112,007.73 and 45,356.14

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Solution

The fourth proportional to 81,164.62, 112,007.73 and 45,356.14 is: 62,591.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,164.62 : 112,007.73 = 45,356.14 : x
  2. Step 2: Convert to fraction form
    81,164.62/112,007.73 = 45,356.14/x
  3. Step 3: Cross multiply
    81,164.62x = 112,007.73 × 45,356.14
  4. Step 4: Simplify right side
    81,164.62x = 5,080,238,282.96
  5. Step 5: Solve for x
    x = 5,080,238,282.96/81,164.62
  6. Step 6: Final answer
    x = 62,591.78

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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.