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Finding the Fourth Proportional to 70,026.60, 104,872.86 and 40,382.44

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Solution

The fourth proportional to 70,026.60, 104,872.86 and 40,382.44 is: 60,477.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,026.60 : 104,872.86 = 40,382.44 : x
  2. Step 2: Convert to fraction form
    70,026.60/104,872.86 = 40,382.44/x
  3. Step 3: Cross multiply
    70,026.60x = 104,872.86 × 40,382.44
  4. Step 4: Simplify right side
    70,026.60x = 4,235,021,976.58
  5. Step 5: Solve for x
    x = 4,235,021,976.58/70,026.60
  6. Step 6: Final answer
    x = 60,477.33

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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.