Home / 49,845.78-74,768.67-20,256.68

Finding the Fourth Proportional to 49,845.78, 74,768.67 and 20,256.68

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Solution

The fourth proportional to 49,845.78, 74,768.67 and 20,256.68 is: 30,385.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,845.78 : 74,768.67 = 20,256.68 : x
  2. Step 2: Convert to fraction form
    49,845.78/74,768.67 = 20,256.68/x
  3. Step 3: Cross multiply
    49,845.78x = 74,768.67 × 20,256.68
  4. Step 4: Simplify right side
    49,845.78x = 1,514,565,209.14
  5. Step 5: Solve for x
    x = 1,514,565,209.14/49,845.78
  6. Step 6: Final answer
    x = 30,385.02

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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.