Home / 54,120.06-81,188.19-19,053.54

Finding the Fourth Proportional to 54,120.06, 81,188.19 and 19,053.54

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Solution

The fourth proportional to 54,120.06, 81,188.19 and 19,053.54 is: 28,583.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,120.06 : 81,188.19 = 19,053.54 : x
  2. Step 2: Convert to fraction form
    54,120.06/81,188.19 = 19,053.54/x
  3. Step 3: Cross multiply
    54,120.06x = 81,188.19 × 19,053.54
  4. Step 4: Simplify right side
    54,120.06x = 1,546,922,425.69
  5. Step 5: Solve for x
    x = 1,546,922,425.69/54,120.06
  6. Step 6: Final answer
    x = 28,583.16

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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.