Home / 54,197.32-81,190.77-39,939.90

Finding the Fourth Proportional to 54,197.32, 81,190.77 and 39,939.90

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Solution

The fourth proportional to 54,197.32, 81,190.77 and 39,939.90 is: 59,832.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,197.32 : 81,190.77 = 39,939.90 : x
  2. Step 2: Convert to fraction form
    54,197.32/81,190.77 = 39,939.90/x
  3. Step 3: Cross multiply
    54,197.32x = 81,190.77 × 39,939.90
  4. Step 4: Simplify right side
    54,197.32x = 3,242,751,234.72
  5. Step 5: Solve for x
    x = 3,242,751,234.72/54,197.32
  6. Step 6: Final answer
    x = 59,832.32

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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.