Home / 55,481.32-76,563.12-31,607.38

Finding the Fourth Proportional to 55,481.32, 76,563.12 and 31,607.38

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Solution

The fourth proportional to 55,481.32, 76,563.12 and 31,607.38 is: 43,617.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,481.32 : 76,563.12 = 31,607.38 : x
  2. Step 2: Convert to fraction form
    55,481.32/76,563.12 = 31,607.38/x
  3. Step 3: Cross multiply
    55,481.32x = 76,563.12 × 31,607.38
  4. Step 4: Simplify right side
    55,481.32x = 2,419,959,627.83
  5. Step 5: Solve for x
    x = 2,419,959,627.83/55,481.32
  6. Step 6: Final answer
    x = 43,617.56

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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.