Home / 55,644.35-76,789.11-30,151.39

Finding the Fourth Proportional to 55,644.35, 76,789.11 and 30,151.39

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Solution

The fourth proportional to 55,644.35, 76,789.11 and 30,151.39 is: 41,608.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,644.35 : 76,789.11 = 30,151.39 : x
  2. Step 2: Convert to fraction form
    55,644.35/76,789.11 = 30,151.39/x
  3. Step 3: Cross multiply
    55,644.35x = 76,789.11 × 30,151.39
  4. Step 4: Simplify right side
    55,644.35x = 2,315,298,403.36
  5. Step 5: Solve for x
    x = 2,315,298,403.36/55,644.35
  6. Step 6: Final answer
    x = 41,608.87

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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.