Home / 54,536.30-81,743.70-21,245.30

Finding the Fourth Proportional to 54,536.30, 81,743.70 and 21,245.30

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Solution

The fourth proportional to 54,536.30, 81,743.70 and 21,245.30 is: 31,844.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,536.30 : 81,743.70 = 21,245.30 : x
  2. Step 2: Convert to fraction form
    54,536.30/81,743.70 = 21,245.30/x
  3. Step 3: Cross multiply
    54,536.30x = 81,743.70 × 21,245.30
  4. Step 4: Simplify right side
    54,536.30x = 1,736,669,429.61
  5. Step 5: Solve for x
    x = 1,736,669,429.61/54,536.30
  6. Step 6: Final answer
    x = 31,844.28

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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.