Home / 54,543.54-81,816.32-17,102.78

Finding the Fourth Proportional to 54,543.54, 81,816.32 and 17,102.78

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Solution

The fourth proportional to 54,543.54, 81,816.32 and 17,102.78 is: 25,654.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,543.54 : 81,816.32 = 17,102.78 : x
  2. Step 2: Convert to fraction form
    54,543.54/81,816.32 = 17,102.78/x
  3. Step 3: Cross multiply
    54,543.54x = 81,816.32 × 17,102.78
  4. Step 4: Simplify right side
    54,543.54x = 1,399,286,155.04
  5. Step 5: Solve for x
    x = 1,399,286,155.04/54,543.54
  6. Step 6: Final answer
    x = 25,654.48

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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.