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Finding the Fourth Proportional to 85,999.22, 118,676.70 and 47,757.80

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Solution

The fourth proportional to 85,999.22, 118,676.70 and 47,757.80 is: 65,904.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,999.22 : 118,676.70 = 47,757.80 : x
  2. Step 2: Convert to fraction form
    85,999.22/118,676.70 = 47,757.80/x
  3. Step 3: Cross multiply
    85,999.22x = 118,676.70 × 47,757.80
  4. Step 4: Simplify right side
    85,999.22x = 5,667,738,103.26
  5. Step 5: Solve for x
    x = 5,667,738,103.26/85,999.22
  6. Step 6: Final answer
    x = 65,904.53

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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.