Home / 49,831.25-74,778.01-20,249.08

Finding the Fourth Proportional to 49,831.25, 74,778.01 and 20,249.08

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Solution

The fourth proportional to 49,831.25, 74,778.01 and 20,249.08 is: 30,386.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,831.25 : 74,778.01 = 20,249.08 : x
  2. Step 2: Convert to fraction form
    49,831.25/74,778.01 = 20,249.08/x
  3. Step 3: Cross multiply
    49,831.25x = 74,778.01 × 20,249.08
  4. Step 4: Simplify right side
    49,831.25x = 1,514,185,431.60
  5. Step 5: Solve for x
    x = 1,514,185,431.60/49,831.25
  6. Step 6: Final answer
    x = 30,386.26

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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.