Home / 74,003.06-102,122.70-40,469.06

Finding the Fourth Proportional to 74,003.06, 102,122.70 and 40,469.06

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Solution

The fourth proportional to 74,003.06, 102,122.70 and 40,469.06 is: 55,846.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,003.06 : 102,122.70 = 40,469.06 : x
  2. Step 2: Convert to fraction form
    74,003.06/102,122.70 = 40,469.06/x
  3. Step 3: Cross multiply
    74,003.06x = 102,122.70 × 40,469.06
  4. Step 4: Simplify right side
    74,003.06x = 4,132,809,673.66
  5. Step 5: Solve for x
    x = 4,132,809,673.66/74,003.06
  6. Step 6: Final answer
    x = 55,846.47

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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.