Home / 54,074.16-81,147.40-19,013.68

Finding the Fourth Proportional to 54,074.16, 81,147.40 and 19,013.68

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Solution

The fourth proportional to 54,074.16, 81,147.40 and 19,013.68 is: 28,533.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,074.16 : 81,147.40 = 19,013.68 : x
  2. Step 2: Convert to fraction form
    54,074.16/81,147.40 = 19,013.68/x
  3. Step 3: Cross multiply
    54,074.16x = 81,147.40 × 19,013.68
  4. Step 4: Simplify right side
    54,074.16x = 1,542,910,696.43
  5. Step 5: Solve for x
    x = 1,542,910,696.43/54,074.16
  6. Step 6: Final answer
    x = 28,533.23

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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.