Home / 85,034.10-127,553.25-40,665.54

Finding the Fourth Proportional to 85,034.10, 127,553.25 and 40,665.54

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Solution

The fourth proportional to 85,034.10, 127,553.25 and 40,665.54 is: 60,999.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,034.10 : 127,553.25 = 40,665.54 : x
  2. Step 2: Convert to fraction form
    85,034.10/127,553.25 = 40,665.54/x
  3. Step 3: Cross multiply
    85,034.10x = 127,553.25 × 40,665.54
  4. Step 4: Simplify right side
    85,034.10x = 5,187,021,790.01
  5. Step 5: Solve for x
    x = 5,187,021,790.01/85,034.10
  6. Step 6: Final answer
    x = 60,999.31

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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.