Home / 54,257.46-81,410.49-43,128.06

Finding the Fourth Proportional to 54,257.46, 81,410.49 and 43,128.06

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Solution

The fourth proportional to 54,257.46, 81,410.49 and 43,128.06 is: 64,711.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,257.46 : 81,410.49 = 43,128.06 : x
  2. Step 2: Convert to fraction form
    54,257.46/81,410.49 = 43,128.06/x
  3. Step 3: Cross multiply
    54,257.46x = 81,410.49 × 43,128.06
  4. Step 4: Simplify right side
    54,257.46x = 3,511,076,497.35
  5. Step 5: Solve for x
    x = 3,511,076,497.35/54,257.46
  6. Step 6: Final answer
    x = 64,711.41

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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.