Home / 49,747.80-74,564.10-20,146.20

Finding the Fourth Proportional to 49,747.80, 74,564.10 and 20,146.20

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Solution

The fourth proportional to 49,747.80, 74,564.10 and 20,146.20 is: 30,195.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,747.80 : 74,564.10 = 20,146.20 : x
  2. Step 2: Convert to fraction form
    49,747.80/74,564.10 = 20,146.20/x
  3. Step 3: Cross multiply
    49,747.80x = 74,564.10 × 20,146.20
  4. Step 4: Simplify right side
    49,747.80x = 1,502,183,271.42
  5. Step 5: Solve for x
    x = 1,502,183,271.42/49,747.80
  6. Step 6: Final answer
    x = 30,195.97

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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.