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Finding the Fourth Proportional to 38,442.70, 57,664.05 and 36,628.30

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Solution

The fourth proportional to 38,442.70, 57,664.05 and 36,628.30 is: 54,942.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,442.70 : 57,664.05 = 36,628.30 : x
  2. Step 2: Convert to fraction form
    38,442.70/57,664.05 = 36,628.30/x
  3. Step 3: Cross multiply
    38,442.70x = 57,664.05 × 36,628.30
  4. Step 4: Simplify right side
    38,442.70x = 2,112,136,122.62
  5. Step 5: Solve for x
    x = 2,112,136,122.62/38,442.70
  6. Step 6: Final answer
    x = 54,942.45

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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.