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Finding the Fourth Proportional to 45,660, 63,012.16 and 25,517.76

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Solution

The fourth proportional to 45,660, 63,012.16 and 25,517.76 is: 35,215.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,660 : 63,012.16 = 25,517.76 : x
  2. Step 2: Convert to fraction form
    45,660/63,012.16 = 25,517.76/x
  3. Step 3: Cross multiply
    45,660x = 63,012.16 × 25,517.76
  4. Step 4: Simplify right side
    45,660x = 1,607,929,175.96
  5. Step 5: Solve for x
    x = 1,607,929,175.96/45,660
  6. Step 6: Final answer
    x = 35,215.27

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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.