Home / 74,174.44-102,359.94-40,640.36

Finding the Fourth Proportional to 74,174.44, 102,359.94 and 40,640.36

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Solution

The fourth proportional to 74,174.44, 102,359.94 and 40,640.36 is: 56,083.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,174.44 : 102,359.94 = 40,640.36 : x
  2. Step 2: Convert to fraction form
    74,174.44/102,359.94 = 40,640.36/x
  3. Step 3: Cross multiply
    74,174.44x = 102,359.94 × 40,640.36
  4. Step 4: Simplify right side
    74,174.44x = 4,159,944,811.18
  5. Step 5: Solve for x
    x = 4,159,944,811.18/74,174.44
  6. Step 6: Final answer
    x = 56,083.27

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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.