Home / 54,440.78-81,622.55-21,132.77

Finding the Fourth Proportional to 54,440.78, 81,622.55 and 21,132.77

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Solution

The fourth proportional to 54,440.78, 81,622.55 and 21,132.77 is: 31,684.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,440.78 : 81,622.55 = 21,132.77 : x
  2. Step 2: Convert to fraction form
    54,440.78/81,622.55 = 21,132.77/x
  3. Step 3: Cross multiply
    54,440.78x = 81,622.55 × 21,132.77
  4. Step 4: Simplify right side
    54,440.78x = 1,724,910,220.68
  5. Step 5: Solve for x
    x = 1,724,910,220.68/54,440.78
  6. Step 6: Final answer
    x = 31,684.16

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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.