Home / 74,687.45-103,067.43-40,696.34

Finding the Fourth Proportional to 74,687.45, 103,067.43 and 40,696.34

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Solution

The fourth proportional to 74,687.45, 103,067.43 and 40,696.34 is: 56,160.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,687.45 : 103,067.43 = 40,696.34 : x
  2. Step 2: Convert to fraction form
    74,687.45/103,067.43 = 40,696.34/x
  3. Step 3: Cross multiply
    74,687.45x = 103,067.43 × 40,696.34
  4. Step 4: Simplify right side
    74,687.45x = 4,194,467,174.21
  5. Step 5: Solve for x
    x = 4,194,467,174.21/74,687.45
  6. Step 6: Final answer
    x = 56,160.27

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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.