Home / 54,185.12-81,260.87-19,116.57

Finding the Fourth Proportional to 54,185.12, 81,260.87 and 19,116.57

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Solution

The fourth proportional to 54,185.12, 81,260.87 and 19,116.57 is: 28,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,185.12 : 81,260.87 = 19,116.57 : x
  2. Step 2: Convert to fraction form
    54,185.12/81,260.87 = 19,116.57/x
  3. Step 3: Cross multiply
    54,185.12x = 81,260.87 × 19,116.57
  4. Step 4: Simplify right side
    54,185.12x = 1,553,429,014.03
  5. Step 5: Solve for x
    x = 1,553,429,014.03/54,185.12
  6. Step 6: Final answer
    x = 28,668.93

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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.