Home / 53,788.92-80,694.32-18,731.31

Finding the Fourth Proportional to 53,788.92, 80,694.32 and 18,731.31

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Solution

The fourth proportional to 53,788.92, 80,694.32 and 18,731.31 is: 28,100.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,788.92 : 80,694.32 = 18,731.31 : x
  2. Step 2: Convert to fraction form
    53,788.92/80,694.32 = 18,731.31/x
  3. Step 3: Cross multiply
    53,788.92x = 80,694.32 × 18,731.31
  4. Step 4: Simplify right side
    53,788.92x = 1,511,510,229.50
  5. Step 5: Solve for x
    x = 1,511,510,229.50/53,788.92
  6. Step 6: Final answer
    x = 28,100.77

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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.