Home / 57,180.82-85,771.43-40,490.37

Finding the Fourth Proportional to 57,180.82, 85,771.43 and 40,490.37

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Solution

The fourth proportional to 57,180.82, 85,771.43 and 40,490.37 is: 60,735.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,180.82 : 85,771.43 = 40,490.37 : x
  2. Step 2: Convert to fraction form
    57,180.82/85,771.43 = 40,490.37/x
  3. Step 3: Cross multiply
    57,180.82x = 85,771.43 × 40,490.37
  4. Step 4: Simplify right side
    57,180.82x = 3,472,916,936.13
  5. Step 5: Solve for x
    x = 3,472,916,936.13/57,180.82
  6. Step 6: Final answer
    x = 60,735.70

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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.