Home / 54,520.83-81,732.77-21,233.20

Finding the Fourth Proportional to 54,520.83, 81,732.77 and 21,233.20

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Solution

The fourth proportional to 54,520.83, 81,732.77 and 21,233.20 is: 31,830.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,520.83 : 81,732.77 = 21,233.20 : x
  2. Step 2: Convert to fraction form
    54,520.83/81,732.77 = 21,233.20/x
  3. Step 3: Cross multiply
    54,520.83x = 81,732.77 × 21,233.20
  4. Step 4: Simplify right side
    54,520.83x = 1,735,448,251.96
  5. Step 5: Solve for x
    x = 1,735,448,251.96/54,520.83
  6. Step 6: Final answer
    x = 31,830.92

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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.