Home / 90,035.27-135,092.49-47,905.44

Finding the Fourth Proportional to 90,035.27, 135,092.49 and 47,905.44

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Solution

The fourth proportional to 90,035.27, 135,092.49 and 47,905.44 is: 71,879.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,035.27 : 135,092.49 = 47,905.44 : x
  2. Step 2: Convert to fraction form
    90,035.27/135,092.49 = 47,905.44/x
  3. Step 3: Cross multiply
    90,035.27x = 135,092.49 × 47,905.44
  4. Step 4: Simplify right side
    90,035.27x = 6,471,665,174.15
  5. Step 5: Solve for x
    x = 6,471,665,174.15/90,035.27
  6. Step 6: Final answer
    x = 71,879.22

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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.