Home / 85,989.25-118,676.11-51,997.98

Finding the Fourth Proportional to 85,989.25, 118,676.11 and 51,997.98

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Solution

The fourth proportional to 85,989.25, 118,676.11 and 51,997.98 is: 71,763.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,989.25 : 118,676.11 = 51,997.98 : x
  2. Step 2: Convert to fraction form
    85,989.25/118,676.11 = 51,997.98/x
  3. Step 3: Cross multiply
    85,989.25x = 118,676.11 × 51,997.98
  4. Step 4: Simplify right side
    85,989.25x = 6,170,918,160.95
  5. Step 5: Solve for x
    x = 6,170,918,160.95/85,989.25
  6. Step 6: Final answer
    x = 71,763.83

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1.5x scale

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.