Home / 54,449.72-81,653.46-21,165.38

Finding the Fourth Proportional to 54,449.72, 81,653.46 and 21,165.38

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Solution

The fourth proportional to 54,449.72, 81,653.46 and 21,165.38 is: 31,739.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,449.72 : 81,653.46 = 21,165.38 : x
  2. Step 2: Convert to fraction form
    54,449.72/81,653.46 = 21,165.38/x
  3. Step 3: Cross multiply
    54,449.72x = 81,653.46 × 21,165.38
  4. Step 4: Simplify right side
    54,449.72x = 1,728,226,509.21
  5. Step 5: Solve for x
    x = 1,728,226,509.21/54,449.72
  6. Step 6: Final answer
    x = 31,739.86

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1.5x scale

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.