Home / 55,629.72-76,743.28-49,262.80

Finding the Fourth Proportional to 55,629.72, 76,743.28 and 49,262.80

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Solution

The fourth proportional to 55,629.72, 76,743.28 and 49,262.80 is: 67,959.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,629.72 : 76,743.28 = 49,262.80 : x
  2. Step 2: Convert to fraction form
    55,629.72/76,743.28 = 49,262.80/x
  3. Step 3: Cross multiply
    55,629.72x = 76,743.28 × 49,262.80
  4. Step 4: Simplify right side
    55,629.72x = 3,780,588,853.98
  5. Step 5: Solve for x
    x = 3,780,588,853.98/55,629.72
  6. Step 6: Final answer
    x = 67,959.88

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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.