Home / 54,781.54-81,775.97-48,138.46

Finding the Fourth Proportional to 54,781.54, 81,775.97 and 48,138.46

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Solution

The fourth proportional to 54,781.54, 81,775.97 and 48,138.46 is: 71,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,781.54 : 81,775.97 = 48,138.46 : x
  2. Step 2: Convert to fraction form
    54,781.54/81,775.97 = 48,138.46/x
  3. Step 3: Cross multiply
    54,781.54x = 81,775.97 × 48,138.46
  4. Step 4: Simplify right side
    54,781.54x = 3,936,569,260.81
  5. Step 5: Solve for x
    x = 3,936,569,260.81/54,781.54
  6. Step 6: Final answer
    x = 71,859.41

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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.