Home / 54,257.96-81,411.24-43,128.56

Finding the Fourth Proportional to 54,257.96, 81,411.24 and 43,128.56

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Solution

The fourth proportional to 54,257.96, 81,411.24 and 43,128.56 is: 64,712.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,257.96 : 81,411.24 = 43,128.56 : x
  2. Step 2: Convert to fraction form
    54,257.96/81,411.24 = 43,128.56/x
  3. Step 3: Cross multiply
    54,257.96x = 81,411.24 × 43,128.56
  4. Step 4: Simplify right side
    54,257.96x = 3,511,149,549.01
  5. Step 5: Solve for x
    x = 3,511,149,549.01/54,257.96
  6. Step 6: Final answer
    x = 64,712.16

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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.