Home / 74,621.60-102,974.82-42,768.44

Finding the Fourth Proportional to 74,621.60, 102,974.82 and 42,768.44

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Solution

The fourth proportional to 74,621.60, 102,974.82 and 42,768.44 is: 59,018.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,621.60 : 102,974.82 = 42,768.44 : x
  2. Step 2: Convert to fraction form
    74,621.60/102,974.82 = 42,768.44/x
  3. Step 3: Cross multiply
    74,621.60x = 102,974.82 × 42,768.44
  4. Step 4: Simplify right side
    74,621.60x = 4,404,072,410.68
  5. Step 5: Solve for x
    x = 4,404,072,410.68/74,621.60
  6. Step 6: Final answer
    x = 59,018.73

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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.