Home / 47,940.24-66,157.69-28,831.03

Finding the Fourth Proportional to 47,940.24, 66,157.69 and 28,831.03

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Solution

The fourth proportional to 47,940.24, 66,157.69 and 28,831.03 is: 39,786.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,940.24 : 66,157.69 = 28,831.03 : x
  2. Step 2: Convert to fraction form
    47,940.24/66,157.69 = 28,831.03/x
  3. Step 3: Cross multiply
    47,940.24x = 66,157.69 × 28,831.03
  4. Step 4: Simplify right side
    47,940.24x = 1,907,394,345.12
  5. Step 5: Solve for x
    x = 1,907,394,345.12/47,940.24
  6. Step 6: Final answer
    x = 39,786.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.