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Finding the Fourth Proportional to 81,670.87, 122,510.49 and 22,505.23

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Solution

The fourth proportional to 81,670.87, 122,510.49 and 22,505.23 is: 33,759.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,670.87 : 122,510.49 = 22,505.23 : x
  2. Step 2: Convert to fraction form
    81,670.87/122,510.49 = 22,505.23/x
  3. Step 3: Cross multiply
    81,670.87x = 122,510.49 × 22,505.23
  4. Step 4: Simplify right side
    81,670.87x = 2,757,126,754.86
  5. Step 5: Solve for x
    x = 2,757,126,754.86/81,670.87
  6. Step 6: Final answer
    x = 33,759.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.