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Finding the Fourth Proportional to 85,234.56, 127,696.32 and 47,598.72

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Solution

The fourth proportional to 85,234.56, 127,696.32 and 47,598.72 is: 71,311.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,234.56 : 127,696.32 = 47,598.72 : x
  2. Step 2: Convert to fraction form
    85,234.56/127,696.32 = 47,598.72/x
  3. Step 3: Cross multiply
    85,234.56x = 127,696.32 × 47,598.72
  4. Step 4: Simplify right side
    85,234.56x = 6,078,181,380.71
  5. Step 5: Solve for x
    x = 6,078,181,380.71/85,234.56
  6. Step 6: Final answer
    x = 71,311.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.