Home / 85,918.37-118,564.25-47,679.59

Finding the Fourth Proportional to 85,918.37, 118,564.25 and 47,679.59

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Solution

The fourth proportional to 85,918.37, 118,564.25 and 47,679.59 is: 65,796.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,918.37 : 118,564.25 = 47,679.59 : x
  2. Step 2: Convert to fraction form
    85,918.37/118,564.25 = 47,679.59/x
  3. Step 3: Cross multiply
    85,918.37x = 118,564.25 × 47,679.59
  4. Step 4: Simplify right side
    85,918.37x = 5,653,093,997.44
  5. Step 5: Solve for x
    x = 5,653,093,997.44/85,918.37
  6. Step 6: Final answer
    x = 65,796.11

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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.