Home / 54,246.70-81,382.20-20,963.80

Finding the Fourth Proportional to 54,246.70, 81,382.20 and 20,963.80

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Solution

The fourth proportional to 54,246.70, 81,382.20 and 20,963.80 is: 31,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,246.70 : 81,382.20 = 20,963.80 : x
  2. Step 2: Convert to fraction form
    54,246.70/81,382.20 = 20,963.80/x
  3. Step 3: Cross multiply
    54,246.70x = 81,382.20 × 20,963.80
  4. Step 4: Simplify right side
    54,246.70x = 1,706,080,164.36
  5. Step 5: Solve for x
    x = 1,706,080,164.36/54,246.70
  6. Step 6: Final answer
    x = 31,450.40

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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.