Home / 49,855.48-74,761.32-18,668.86

Finding the Fourth Proportional to 49,855.48, 74,761.32 and 18,668.86

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Solution

The fourth proportional to 49,855.48, 74,761.32 and 18,668.86 is: 27,995.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,855.48 : 74,761.32 = 18,668.86 : x
  2. Step 2: Convert to fraction form
    49,855.48/74,761.32 = 18,668.86/x
  3. Step 3: Cross multiply
    49,855.48x = 74,761.32 × 18,668.86
  4. Step 4: Simplify right side
    49,855.48x = 1,395,708,616.50
  5. Step 5: Solve for x
    x = 1,395,708,616.50/49,855.48
  6. Step 6: Final answer
    x = 27,995.09

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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.