Home / 54,043.21-74,573.96-31,377.78

Finding the Fourth Proportional to 54,043.21, 74,573.96 and 31,377.78

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Solution

The fourth proportional to 54,043.21, 74,573.96 and 31,377.78 is: 43,298.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,043.21 : 74,573.96 = 31,377.78 : x
  2. Step 2: Convert to fraction form
    54,043.21/74,573.96 = 31,377.78/x
  3. Step 3: Cross multiply
    54,043.21x = 74,573.96 × 31,377.78
  4. Step 4: Simplify right side
    54,043.21x = 2,339,965,310.61
  5. Step 5: Solve for x
    x = 2,339,965,310.61/54,043.21
  6. Step 6: Final answer
    x = 43,298.04

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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.