Home / 54,517.86-81,787.77-19,456.60

Finding the Fourth Proportional to 54,517.86, 81,787.77 and 19,456.60

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Solution

The fourth proportional to 54,517.86, 81,787.77 and 19,456.60 is: 29,188.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,517.86 : 81,787.77 = 19,456.60 : x
  2. Step 2: Convert to fraction form
    54,517.86/81,787.77 = 19,456.60/x
  3. Step 3: Cross multiply
    54,517.86x = 81,787.77 × 19,456.60
  4. Step 4: Simplify right side
    54,517.86x = 1,591,311,925.78
  5. Step 5: Solve for x
    x = 1,591,311,925.78/54,517.86
  6. Step 6: Final answer
    x = 29,188.82

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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.