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Finding the Fourth Proportional to 85,310.01, 127,910.25 and 35,424.54

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Solution

The fourth proportional to 85,310.01, 127,910.25 and 35,424.54 is: 53,114.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,310.01 : 127,910.25 = 35,424.54 : x
  2. Step 2: Convert to fraction form
    85,310.01/127,910.25 = 35,424.54/x
  3. Step 3: Cross multiply
    85,310.01x = 127,910.25 × 35,424.54
  4. Step 4: Simplify right side
    85,310.01x = 4,531,161,767.54
  5. Step 5: Solve for x
    x = 4,531,161,767.54/85,310.01
  6. Step 6: Final answer
    x = 53,114.07

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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.