Home / 55,002.78-82,504.14-19,942.38

Finding the Fourth Proportional to 55,002.78, 82,504.14 and 19,942.38

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Solution

The fourth proportional to 55,002.78, 82,504.14 and 19,942.38 is: 29,913.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,002.78 : 82,504.14 = 19,942.38 : x
  2. Step 2: Convert to fraction form
    55,002.78/82,504.14 = 19,942.38/x
  3. Step 3: Cross multiply
    55,002.78x = 82,504.14 × 19,942.38
  4. Step 4: Simplify right side
    55,002.78x = 1,645,328,911.45
  5. Step 5: Solve for x
    x = 1,645,328,911.45/55,002.78
  6. Step 6: Final answer
    x = 29,913.56

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1.5x scale

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.