Home / 85,608.43-128,418.82-26,436.44

Finding the Fourth Proportional to 85,608.43, 128,418.82 and 26,436.44

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Solution

The fourth proportional to 85,608.43, 128,418.82 and 26,436.44 is: 39,656.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,608.43 : 128,418.82 = 26,436.44 : x
  2. Step 2: Convert to fraction form
    85,608.43/128,418.82 = 26,436.44/x
  3. Step 3: Cross multiply
    85,608.43x = 128,418.82 × 26,436.44
  4. Step 4: Simplify right side
    85,608.43x = 3,394,936,684.76
  5. Step 5: Solve for x
    x = 3,394,936,684.76/85,608.43
  6. Step 6: Final answer
    x = 39,656.57

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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.