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Finding the Fourth Proportional to 85,589, 118,110.60 and 47,349.96

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Solution

The fourth proportional to 85,589, 118,110.60 and 47,349.96 is: 65,341.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,589 : 118,110.60 = 47,349.96 : x
  2. Step 2: Convert to fraction form
    85,589/118,110.60 = 47,349.96/x
  3. Step 3: Cross multiply
    85,589x = 118,110.60 × 47,349.96
  4. Step 4: Simplify right side
    85,589x = 5,592,532,185.58
  5. Step 5: Solve for x
    x = 5,592,532,185.58/85,589
  6. Step 6: Final answer
    x = 65,341.72

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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.