Home / 49,829.12-74,775.04-20,247.68

Finding the Fourth Proportional to 49,829.12, 74,775.04 and 20,247.68

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Solution

The fourth proportional to 49,829.12, 74,775.04 and 20,247.68 is: 30,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,829.12 : 74,775.04 = 20,247.68 : x
  2. Step 2: Convert to fraction form
    49,829.12/74,775.04 = 20,247.68/x
  3. Step 3: Cross multiply
    49,829.12x = 74,775.04 × 20,247.68
  4. Step 4: Simplify right side
    49,829.12x = 1,514,021,081.91
  5. Step 5: Solve for x
    x = 1,514,021,081.91/49,829.12
  6. Step 6: Final answer
    x = 30,384.26

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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.