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Finding the Fourth Proportional to 85,997.66, 118,673.34 and 47,759.18

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Solution

The fourth proportional to 85,997.66, 118,673.34 and 47,759.18 is: 65,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,997.66 : 118,673.34 = 47,759.18 : x
  2. Step 2: Convert to fraction form
    85,997.66/118,673.34 = 47,759.18/x
  3. Step 3: Cross multiply
    85,997.66x = 118,673.34 × 47,759.18
  4. Step 4: Simplify right side
    85,997.66x = 5,667,741,406.26
  5. Step 5: Solve for x
    x = 5,667,741,406.26/85,997.66
  6. Step 6: Final answer
    x = 65,905.76

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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.