Home / 81,248.21-121,874.85-22,085.14

Finding the Fourth Proportional to 81,248.21, 121,874.85 and 22,085.14

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Solution

The fourth proportional to 81,248.21, 121,874.85 and 22,085.14 is: 33,128.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,248.21 : 121,874.85 = 22,085.14 : x
  2. Step 2: Convert to fraction form
    81,248.21/121,874.85 = 22,085.14/x
  3. Step 3: Cross multiply
    81,248.21x = 121,874.85 × 22,085.14
  4. Step 4: Simplify right side
    81,248.21x = 2,691,622,515.35
  5. Step 5: Solve for x
    x = 2,691,622,515.35/81,248.21
  6. Step 6: Final answer
    x = 33,128.39

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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.