Home / 74,238.60-102,450.66-40,704.36

Finding the Fourth Proportional to 74,238.60, 102,450.66 and 40,704.36

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Solution

The fourth proportional to 74,238.60, 102,450.66 and 40,704.36 is: 56,172.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,238.60 : 102,450.66 = 40,704.36 : x
  2. Step 2: Convert to fraction form
    74,238.60/102,450.66 = 40,704.36/x
  3. Step 3: Cross multiply
    74,238.60x = 102,450.66 × 40,704.36
  4. Step 4: Simplify right side
    74,238.60x = 4,170,188,546.88
  5. Step 5: Solve for x
    x = 4,170,188,546.88/74,238.60
  6. Step 6: Final answer
    x = 56,172.78

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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.