Home / 54,458.30-81,626.70-21,167.30

Finding the Fourth Proportional to 54,458.30, 81,626.70 and 21,167.30

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Solution

The fourth proportional to 54,458.30, 81,626.70 and 21,167.30 is: 31,727.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,458.30 : 81,626.70 = 21,167.30 : x
  2. Step 2: Convert to fraction form
    54,458.30/81,626.70 = 21,167.30/x
  3. Step 3: Cross multiply
    54,458.30x = 81,626.70 × 21,167.30
  4. Step 4: Simplify right side
    54,458.30x = 1,727,816,846.91
  5. Step 5: Solve for x
    x = 1,727,816,846.91/54,458.30
  6. Step 6: Final answer
    x = 31,727.34

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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.