Home / 85,086.72-127,673.13-35,202.61

Finding the Fourth Proportional to 85,086.72, 127,673.13 and 35,202.61

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Solution

The fourth proportional to 85,086.72, 127,673.13 and 35,202.61 is: 52,821.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,086.72 : 127,673.13 = 35,202.61 : x
  2. Step 2: Convert to fraction form
    85,086.72/127,673.13 = 35,202.61/x
  3. Step 3: Cross multiply
    85,086.72x = 127,673.13 × 35,202.61
  4. Step 4: Simplify right side
    85,086.72x = 4,494,427,750.25
  5. Step 5: Solve for x
    x = 4,494,427,750.25/85,086.72
  6. Step 6: Final answer
    x = 52,821.73

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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.