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Finding the Fourth Proportional to 43,755.30, 60,361.28 and 28,641.30

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Solution

The fourth proportional to 43,755.30, 60,361.28 and 28,641.30 is: 39,511.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,755.30 : 60,361.28 = 28,641.30 : x
  2. Step 2: Convert to fraction form
    43,755.30/60,361.28 = 28,641.30/x
  3. Step 3: Cross multiply
    43,755.30x = 60,361.28 × 28,641.30
  4. Step 4: Simplify right side
    43,755.30x = 1,728,825,528.86
  5. Step 5: Solve for x
    x = 1,728,825,528.86/43,755.30
  6. Step 6: Final answer
    x = 39,511.23

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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.