Home / 85,360.82-117,805.77-47,127.20

Finding the Fourth Proportional to 85,360.82, 117,805.77 and 47,127.20

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Solution

The fourth proportional to 85,360.82, 117,805.77 and 47,127.20 is: 65,039.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,360.82 : 117,805.77 = 47,127.20 : x
  2. Step 2: Convert to fraction form
    85,360.82/117,805.77 = 47,127.20/x
  3. Step 3: Cross multiply
    85,360.82x = 117,805.77 × 47,127.20
  4. Step 4: Simplify right side
    85,360.82x = 5,551,856,083.94
  5. Step 5: Solve for x
    x = 5,551,856,083.94/85,360.82
  6. Step 6: Final answer
    x = 65,039.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.