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Finding the Fourth Proportional to 81,063.92, 111,866.34 and 45,257.27

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Solution

The fourth proportional to 81,063.92, 111,866.34 and 45,257.27 is: 62,453.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,063.92 : 111,866.34 = 45,257.27 : x
  2. Step 2: Convert to fraction form
    81,063.92/111,866.34 = 45,257.27/x
  3. Step 3: Cross multiply
    81,063.92x = 111,866.34 × 45,257.27
  4. Step 4: Simplify right side
    81,063.92x = 5,062,764,593.96
  5. Step 5: Solve for x
    x = 5,062,764,593.96/81,063.92
  6. Step 6: Final answer
    x = 62,453.99

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1.5x scale

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.