Home / 54,216.32-74,818.40-30,342.78

Finding the Fourth Proportional to 54,216.32, 74,818.40 and 30,342.78

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Solution

The fourth proportional to 54,216.32, 74,818.40 and 30,342.78 is: 41,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,216.32 : 74,818.40 = 30,342.78 : x
  2. Step 2: Convert to fraction form
    54,216.32/74,818.40 = 30,342.78/x
  3. Step 3: Cross multiply
    54,216.32x = 74,818.40 × 30,342.78
  4. Step 4: Simplify right side
    54,216.32x = 2,270,198,099.44
  5. Step 5: Solve for x
    x = 2,270,198,099.44/54,216.32
  6. Step 6: Final answer
    x = 41,872.97

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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.