Home / 54,317.82-81,426.21-21,059.58

Finding the Fourth Proportional to 54,317.82, 81,426.21 and 21,059.58

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Solution

The fourth proportional to 54,317.82, 81,426.21 and 21,059.58 is: 31,569.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,317.82 : 81,426.21 = 21,059.58 : x
  2. Step 2: Convert to fraction form
    54,317.82/81,426.21 = 21,059.58/x
  3. Step 3: Cross multiply
    54,317.82x = 81,426.21 × 21,059.58
  4. Step 4: Simplify right side
    54,317.82x = 1,714,801,783.59
  5. Step 5: Solve for x
    x = 1,714,801,783.59/54,317.82
  6. Step 6: Final answer
    x = 31,569.78

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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.