Home / 54,258.46-81,411.99-43,129.06

Finding the Fourth Proportional to 54,258.46, 81,411.99 and 43,129.06

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Solution

The fourth proportional to 54,258.46, 81,411.99 and 43,129.06 is: 64,712.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,258.46 : 81,411.99 = 43,129.06 : x
  2. Step 2: Convert to fraction form
    54,258.46/81,411.99 = 43,129.06/x
  3. Step 3: Cross multiply
    54,258.46x = 81,411.99 × 43,129.06
  4. Step 4: Simplify right side
    54,258.46x = 3,511,222,601.43
  5. Step 5: Solve for x
    x = 3,511,222,601.43/54,258.46
  6. Step 6: Final answer
    x = 64,712.91

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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.