Home / 55,317.78-82,968.54-20,249.28

Finding the Fourth Proportional to 55,317.78, 82,968.54 and 20,249.28

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Solution

The fourth proportional to 55,317.78, 82,968.54 and 20,249.28 is: 30,370.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,317.78 : 82,968.54 = 20,249.28 : x
  2. Step 2: Convert to fraction form
    55,317.78/82,968.54 = 20,249.28/x
  3. Step 3: Cross multiply
    55,317.78x = 82,968.54 × 20,249.28
  4. Step 4: Simplify right side
    55,317.78x = 1,680,053,197.65
  5. Step 5: Solve for x
    x = 1,680,053,197.65/55,317.78
  6. Step 6: Final answer
    x = 30,370.94

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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.