Home / 31,074.32-43,180.46-30,754.64

Finding the Fourth Proportional to 31,074.32, 43,180.46 and 30,754.64

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Solution

The fourth proportional to 31,074.32, 43,180.46 and 30,754.64 is: 42,736.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,074.32 : 43,180.46 = 30,754.64 : x
  2. Step 2: Convert to fraction form
    31,074.32/43,180.46 = 30,754.64/x
  3. Step 3: Cross multiply
    31,074.32x = 43,180.46 × 30,754.64
  4. Step 4: Simplify right side
    31,074.32x = 1,327,999,502.33
  5. Step 5: Solve for x
    x = 1,327,999,502.33/31,074.32
  6. Step 6: Final answer
    x = 42,736.24

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.