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Finding the Fourth Proportional to 45,082, 62,190.48 and 28,953.28

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Solution

The fourth proportional to 45,082, 62,190.48 and 28,953.28 is: 39,940.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,082 : 62,190.48 = 28,953.28 : x
  2. Step 2: Convert to fraction form
    45,082/62,190.48 = 28,953.28/x
  3. Step 3: Cross multiply
    45,082x = 62,190.48 × 28,953.28
  4. Step 4: Simplify right side
    45,082x = 1,800,618,380.77
  5. Step 5: Solve for x
    x = 1,800,618,380.77/45,082
  6. Step 6: Final answer
    x = 39,940.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.