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Finding the Fourth Proportional to 86,852, 119,855.80 and 49,125.44

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Solution

The fourth proportional to 86,852, 119,855.80 and 49,125.44 is: 67,793.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,852 : 119,855.80 = 49,125.44 : x
  2. Step 2: Convert to fraction form
    86,852/119,855.80 = 49,125.44/x
  3. Step 3: Cross multiply
    86,852x = 119,855.80 × 49,125.44
  4. Step 4: Simplify right side
    86,852x = 5,887,968,911.55
  5. Step 5: Solve for x
    x = 5,887,968,911.55/86,852
  6. Step 6: Final answer
    x = 67,793.13

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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.