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Finding the Fourth Proportional to 45,385, 62,631.30 and 25,513

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Solution

The fourth proportional to 45,385, 62,631.30 and 25,513 is: 35,207.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,385 : 62,631.30 = 25,513 : x
  2. Step 2: Convert to fraction form
    45,385/62,631.30 = 25,513/x
  3. Step 3: Cross multiply
    45,385x = 62,631.30 × 25,513
  4. Step 4: Simplify right side
    45,385x = 1,597,912,356.90
  5. Step 5: Solve for x
    x = 1,597,912,356.90/45,385
  6. Step 6: Final answer
    x = 35,207.94

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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.