Home / 55,022.78-82,539.64-19,965.18

Finding the Fourth Proportional to 55,022.78, 82,539.64 and 19,965.18

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Solution

The fourth proportional to 55,022.78, 82,539.64 and 19,965.18 is: 29,949.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,022.78 : 82,539.64 = 19,965.18 : x
  2. Step 2: Convert to fraction form
    55,022.78/82,539.64 = 19,965.18/x
  3. Step 3: Cross multiply
    55,022.78x = 82,539.64 × 19,965.18
  4. Step 4: Simplify right side
    55,022.78x = 1,647,918,769.74
  5. Step 5: Solve for x
    x = 1,647,918,769.74/55,022.78
  6. Step 6: Final answer
    x = 29,949.75

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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.