Home / 54,442.32-81,654.78-21,177.60

Finding the Fourth Proportional to 54,442.32, 81,654.78 and 21,177.60

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Solution

The fourth proportional to 54,442.32, 81,654.78 and 21,177.60 is: 31,763.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,442.32 : 81,654.78 = 21,177.60 : x
  2. Step 2: Convert to fraction form
    54,442.32/81,654.78 = 21,177.60/x
  3. Step 3: Cross multiply
    54,442.32x = 81,654.78 × 21,177.60
  4. Step 4: Simplify right side
    54,442.32x = 1,729,252,268.93
  5. Step 5: Solve for x
    x = 1,729,252,268.93/54,442.32
  6. Step 6: Final answer
    x = 31,763.02

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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.