Home / 54,589.96-81,753.71-31,145.32

Finding the Fourth Proportional to 54,589.96, 81,753.71 and 31,145.32

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Solution

The fourth proportional to 54,589.96, 81,753.71 and 31,145.32 is: 46,643.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,589.96 : 81,753.71 = 31,145.32 : x
  2. Step 2: Convert to fraction form
    54,589.96/81,753.71 = 31,145.32/x
  3. Step 3: Cross multiply
    54,589.96x = 81,753.71 × 31,145.32
  4. Step 4: Simplify right side
    54,589.96x = 2,546,245,459.14
  5. Step 5: Solve for x
    x = 2,546,245,459.14/54,589.96
  6. Step 6: Final answer
    x = 46,643.11

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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.