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Finding the Fourth Proportional to 45,520, 62,816.97 and 25,378.54

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Solution

The fourth proportional to 45,520, 62,816.97 and 25,378.54 is: 35,022.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,520 : 62,816.97 = 25,378.54 : x
  2. Step 2: Convert to fraction form
    45,520/62,816.97 = 25,378.54/x
  3. Step 3: Cross multiply
    45,520x = 62,816.97 × 25,378.54
  4. Step 4: Simplify right side
    45,520x = 1,594,202,985.82
  5. Step 5: Solve for x
    x = 1,594,202,985.82/45,520
  6. Step 6: Final answer
    x = 35,022.03

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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.