Home / 54,426.41-81,670.71-21,142.15

Finding the Fourth Proportional to 54,426.41, 81,670.71 and 21,142.15

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Solution

The fourth proportional to 54,426.41, 81,670.71 and 21,142.15 is: 31,725.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,426.41 : 81,670.71 = 21,142.15 : x
  2. Step 2: Convert to fraction form
    54,426.41/81,670.71 = 21,142.15/x
  3. Step 3: Cross multiply
    54,426.41x = 81,670.71 × 21,142.15
  4. Step 4: Simplify right side
    54,426.41x = 1,726,694,276.53
  5. Step 5: Solve for x
    x = 1,726,694,276.53/54,426.41
  6. Step 6: Final answer
    x = 31,725.30

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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.