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Finding the Fourth Proportional to 55,404.18, 76,458 and 30,253.68

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Solution

The fourth proportional to 55,404.18, 76,458 and 30,253.68 is: 41,750.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,404.18 : 76,458 = 30,253.68 : x
  2. Step 2: Convert to fraction form
    55,404.18/76,458 = 30,253.68/x
  3. Step 3: Cross multiply
    55,404.18x = 76,458 × 30,253.68
  4. Step 4: Simplify right side
    55,404.18x = 2,313,135,865.44
  5. Step 5: Solve for x
    x = 2,313,135,865.44/55,404.18
  6. Step 6: Final answer
    x = 41,750.20

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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.