Home / 61,291.10-91,934.82-16,920.56

Finding the Fourth Proportional to 61,291.10, 91,934.82 and 16,920.56

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Solution

The fourth proportional to 61,291.10, 91,934.82 and 16,920.56 is: 25,380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,291.10 : 91,934.82 = 16,920.56 : x
  2. Step 2: Convert to fraction form
    61,291.10/91,934.82 = 16,920.56/x
  3. Step 3: Cross multiply
    61,291.10x = 91,934.82 × 16,920.56
  4. Step 4: Simplify right side
    61,291.10x = 1,555,588,637.90
  5. Step 5: Solve for x
    x = 1,555,588,637.90/61,291.10
  6. Step 6: Final answer
    x = 25,380.33

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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.