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Finding the Fourth Proportional to 88,678, 122,374.56 and 50,949.28

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Solution

The fourth proportional to 88,678, 122,374.56 and 50,949.28 is: 70,309.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,678 : 122,374.56 = 50,949.28 : x
  2. Step 2: Convert to fraction form
    88,678/122,374.56 = 50,949.28/x
  3. Step 3: Cross multiply
    88,678x = 122,374.56 × 50,949.28
  4. Step 4: Simplify right side
    88,678x = 6,234,895,722.32
  5. Step 5: Solve for x
    x = 6,234,895,722.32/88,678
  6. Step 6: Final answer
    x = 70,309.39

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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.