Home / 54,638.94-81,930.96-31,850.12

Finding the Fourth Proportional to 54,638.94, 81,930.96 and 31,850.12

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Solution

The fourth proportional to 54,638.94, 81,930.96 and 31,850.12 is: 47,759.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,638.94 : 81,930.96 = 31,850.12 : x
  2. Step 2: Convert to fraction form
    54,638.94/81,930.96 = 31,850.12/x
  3. Step 3: Cross multiply
    54,638.94x = 81,930.96 × 31,850.12
  4. Step 4: Simplify right side
    54,638.94x = 2,609,510,907.72
  5. Step 5: Solve for x
    x = 2,609,510,907.72/54,638.94
  6. Step 6: Final answer
    x = 47,759.18

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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.