Home / 54,390.98-81,438.84-28,043.70

Finding the Fourth Proportional to 54,390.98, 81,438.84 and 28,043.70

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Solution

The fourth proportional to 54,390.98, 81,438.84 and 28,043.70 is: 41,989.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,390.98 : 81,438.84 = 28,043.70 : x
  2. Step 2: Convert to fraction form
    54,390.98/81,438.84 = 28,043.70/x
  3. Step 3: Cross multiply
    54,390.98x = 81,438.84 × 28,043.70
  4. Step 4: Simplify right side
    54,390.98x = 2,283,846,397.31
  5. Step 5: Solve for x
    x = 2,283,846,397.31/54,390.98
  6. Step 6: Final answer
    x = 41,989.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.