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Finding the Fourth Proportional to 61,326, 92,011.20 and 30,183.12

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Solution

The fourth proportional to 61,326, 92,011.20 and 30,183.12 is: 45,285.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,326 : 92,011.20 = 30,183.12 : x
  2. Step 2: Convert to fraction form
    61,326/92,011.20 = 30,183.12/x
  3. Step 3: Cross multiply
    61,326x = 92,011.20 × 30,183.12
  4. Step 4: Simplify right side
    61,326x = 2,777,185,090.94
  5. Step 5: Solve for x
    x = 2,777,185,090.94/61,326
  6. Step 6: Final answer
    x = 45,285.61

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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.