Home / 53,727.72-80,443.89-40,540.20

Finding the Fourth Proportional to 53,727.72, 80,443.89 and 40,540.20

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Solution

The fourth proportional to 53,727.72, 80,443.89 and 40,540.20 is: 60,698.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,727.72 : 80,443.89 = 40,540.20 : x
  2. Step 2: Convert to fraction form
    53,727.72/80,443.89 = 40,540.20/x
  3. Step 3: Cross multiply
    53,727.72x = 80,443.89 × 40,540.20
  4. Step 4: Simplify right side
    53,727.72x = 3,261,211,389.38
  5. Step 5: Solve for x
    x = 3,261,211,389.38/53,727.72
  6. Step 6: Final answer
    x = 60,698.86

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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.