Home / 53,785.92-80,689.82-18,728.31

Finding the Fourth Proportional to 53,785.92, 80,689.82 and 18,728.31

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Solution

The fourth proportional to 53,785.92, 80,689.82 and 18,728.31 is: 28,096.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,785.92 : 80,689.82 = 18,728.31 : x
  2. Step 2: Convert to fraction form
    53,785.92/80,689.82 = 18,728.31/x
  3. Step 3: Cross multiply
    53,785.92x = 80,689.82 × 18,728.31
  4. Step 4: Simplify right side
    53,785.92x = 1,511,184,277.10
  5. Step 5: Solve for x
    x = 1,511,184,277.10/53,785.92
  6. Step 6: Final answer
    x = 28,096.28

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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.