Home / 54,318.39-81,105.99-48,659.54

Finding the Fourth Proportional to 54,318.39, 81,105.99 and 48,659.54

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Solution

The fourth proportional to 54,318.39, 81,105.99 and 48,659.54 is: 72,656.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,318.39 : 81,105.99 = 48,659.54 : x
  2. Step 2: Convert to fraction form
    54,318.39/81,105.99 = 48,659.54/x
  3. Step 3: Cross multiply
    54,318.39x = 81,105.99 × 48,659.54
  4. Step 4: Simplify right side
    54,318.39x = 3,946,579,759.11
  5. Step 5: Solve for x
    x = 3,946,579,759.11/54,318.39
  6. Step 6: Final answer
    x = 72,656.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.