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Finding the Fourth Proportional to 69,009, 95,205.44 and 38,787.39

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Solution

The fourth proportional to 69,009, 95,205.44 and 38,787.39 is: 53,511.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,009 : 95,205.44 = 38,787.39 : x
  2. Step 2: Convert to fraction form
    69,009/95,205.44 = 38,787.39/x
  3. Step 3: Cross multiply
    69,009x = 95,205.44 × 38,787.39
  4. Step 4: Simplify right side
    69,009x = 3,692,770,531.40
  5. Step 5: Solve for x
    x = 3,692,770,531.40/69,009
  6. Step 6: Final answer
    x = 53,511.43

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1.5x scale

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.