Home / 69,127.05-103,676.40-19,194.60

Finding the Fourth Proportional to 69,127.05, 103,676.40 and 19,194.60

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Solution

The fourth proportional to 69,127.05, 103,676.40 and 19,194.60 is: 28,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,127.05 : 103,676.40 = 19,194.60 : x
  2. Step 2: Convert to fraction form
    69,127.05/103,676.40 = 19,194.60/x
  3. Step 3: Cross multiply
    69,127.05x = 103,676.40 × 19,194.60
  4. Step 4: Simplify right side
    69,127.05x = 1,990,027,027.44
  5. Step 5: Solve for x
    x = 1,990,027,027.44/69,127.05
  6. Step 6: Final answer
    x = 28,787.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.