Home / 55,778.20-76,945.36-35,613.88

Finding the Fourth Proportional to 55,778.20, 76,945.36 and 35,613.88

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Solution

The fourth proportional to 55,778.20, 76,945.36 and 35,613.88 is: 49,128.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,778.20 : 76,945.36 = 35,613.88 : x
  2. Step 2: Convert to fraction form
    55,778.20/76,945.36 = 35,613.88/x
  3. Step 3: Cross multiply
    55,778.20x = 76,945.36 × 35,613.88
  4. Step 4: Simplify right side
    55,778.20x = 2,740,322,817.60
  5. Step 5: Solve for x
    x = 2,740,322,817.60/55,778.20
  6. Step 6: Final answer
    x = 49,128.92

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1.5x scale

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.