Home / 85,107.38-127,649.57-35,180.54

Finding the Fourth Proportional to 85,107.38, 127,649.57 and 35,180.54

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Solution

The fourth proportional to 85,107.38, 127,649.57 and 35,180.54 is: 52,766.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,107.38 : 127,649.57 = 35,180.54 : x
  2. Step 2: Convert to fraction form
    85,107.38/127,649.57 = 35,180.54/x
  3. Step 3: Cross multiply
    85,107.38x = 127,649.57 × 35,180.54
  4. Step 4: Simplify right side
    85,107.38x = 4,490,781,383.82
  5. Step 5: Solve for x
    x = 4,490,781,383.82/85,107.38
  6. Step 6: Final answer
    x = 52,766.07

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1.5x scale

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.