Home / 55,380.78-76,425.46-30,230.28

Finding the Fourth Proportional to 55,380.78, 76,425.46 and 30,230.28

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Solution

The fourth proportional to 55,380.78, 76,425.46 and 30,230.28 is: 41,717.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,380.78 : 76,425.46 = 30,230.28 : x
  2. Step 2: Convert to fraction form
    55,380.78/76,425.46 = 30,230.28/x
  3. Step 3: Cross multiply
    55,380.78x = 76,425.46 × 30,230.28
  4. Step 4: Simplify right side
    55,380.78x = 2,310,363,054.93
  5. Step 5: Solve for x
    x = 2,310,363,054.93/55,380.78
  6. Step 6: Final answer
    x = 41,717.78

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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.