Home / 54,376.56-81,542.64-21,090.24

Finding the Fourth Proportional to 54,376.56, 81,542.64 and 21,090.24

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Solution

The fourth proportional to 54,376.56, 81,542.64 and 21,090.24 is: 31,626.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,376.56 : 81,542.64 = 21,090.24 : x
  2. Step 2: Convert to fraction form
    54,376.56/81,542.64 = 21,090.24/x
  3. Step 3: Cross multiply
    54,376.56x = 81,542.64 × 21,090.24
  4. Step 4: Simplify right side
    54,376.56x = 1,719,753,847.83
  5. Step 5: Solve for x
    x = 1,719,753,847.83/54,376.56
  6. Step 6: Final answer
    x = 31,626.75

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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.