Home / 54,770.96-82,107.21-19,686

Finding the Fourth Proportional to 54,770.96, 82,107.21 and 19,686

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Solution

The fourth proportional to 54,770.96, 82,107.21 and 19,686 is: 29,511.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,770.96 : 82,107.21 = 19,686 : x
  2. Step 2: Convert to fraction form
    54,770.96/82,107.21 = 19,686/x
  3. Step 3: Cross multiply
    54,770.96x = 82,107.21 × 19,686
  4. Step 4: Simplify right side
    54,770.96x = 1,616,362,536.06
  5. Step 5: Solve for x
    x = 1,616,362,536.06/54,770.96
  6. Step 6: Final answer
    x = 29,511.31

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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.