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Finding the Fourth Proportional to 86,481.08, 119,345.10 and 48,239.48

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Solution

The fourth proportional to 86,481.08, 119,345.10 and 48,239.48 is: 66,571.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,481.08 : 119,345.10 = 48,239.48 : x
  2. Step 2: Convert to fraction form
    86,481.08/119,345.10 = 48,239.48/x
  3. Step 3: Cross multiply
    86,481.08x = 119,345.10 × 48,239.48
  4. Step 4: Simplify right side
    86,481.08x = 5,757,145,564.55
  5. Step 5: Solve for x
    x = 5,757,145,564.55/86,481.08
  6. Step 6: Final answer
    x = 66,571.16

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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.