Home / 54,725.90-81,940.82-28,375.25

Finding the Fourth Proportional to 54,725.90, 81,940.82 and 28,375.25

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Solution

The fourth proportional to 54,725.90, 81,940.82 and 28,375.25 is: 42,486.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,725.90 : 81,940.82 = 28,375.25 : x
  2. Step 2: Convert to fraction form
    54,725.90/81,940.82 = 28,375.25/x
  3. Step 3: Cross multiply
    54,725.90x = 81,940.82 × 28,375.25
  4. Step 4: Simplify right side
    54,725.90x = 2,325,090,701.12
  5. Step 5: Solve for x
    x = 2,325,090,701.12/54,725.90
  6. Step 6: Final answer
    x = 42,486.12

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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.