Home / 49,830.10-74,743.53-20,239.18

Finding the Fourth Proportional to 49,830.10, 74,743.53 and 20,239.18

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Solution

The fourth proportional to 49,830.10, 74,743.53 and 20,239.18 is: 30,358.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,830.10 : 74,743.53 = 20,239.18 : x
  2. Step 2: Convert to fraction form
    49,830.10/74,743.53 = 20,239.18/x
  3. Step 3: Cross multiply
    49,830.10x = 74,743.53 × 20,239.18
  4. Step 4: Simplify right side
    49,830.10x = 1,512,747,757.51
  5. Step 5: Solve for x
    x = 1,512,747,757.51/49,830.10
  6. Step 6: Final answer
    x = 30,358.11

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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.