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Finding the Fourth Proportional to 81,037.97, 111,838.01 and 45,234.96

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Solution

The fourth proportional to 81,037.97, 111,838.01 and 45,234.96 is: 62,427.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,037.97 : 111,838.01 = 45,234.96 : x
  2. Step 2: Convert to fraction form
    81,037.97/111,838.01 = 45,234.96/x
  3. Step 3: Cross multiply
    81,037.97x = 111,838.01 × 45,234.96
  4. Step 4: Simplify right side
    81,037.97x = 5,058,987,682.65
  5. Step 5: Solve for x
    x = 5,058,987,682.65/81,037.97
  6. Step 6: Final answer
    x = 62,427.38

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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.