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Finding the Fourth Proportional to 85,270.32, 117,644.40 and 49,447.26

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Solution

The fourth proportional to 85,270.32, 117,644.40 and 49,447.26 is: 68,220.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,270.32 : 117,644.40 = 49,447.26 : x
  2. Step 2: Convert to fraction form
    85,270.32/117,644.40 = 49,447.26/x
  3. Step 3: Cross multiply
    85,270.32x = 117,644.40 × 49,447.26
  4. Step 4: Simplify right side
    85,270.32x = 5,817,193,234.34
  5. Step 5: Solve for x
    x = 5,817,193,234.34/85,270.32
  6. Step 6: Final answer
    x = 68,220.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.