Home / 74,687.34-103,067.32-40,696.28

Finding the Fourth Proportional to 74,687.34, 103,067.32 and 40,696.28

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Solution

The fourth proportional to 74,687.34, 103,067.32 and 40,696.28 is: 56,160.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,687.34 : 103,067.32 = 40,696.28 : x
  2. Step 2: Convert to fraction form
    74,687.34/103,067.32 = 40,696.28/x
  3. Step 3: Cross multiply
    74,687.34x = 103,067.32 × 40,696.28
  4. Step 4: Simplify right side
    74,687.34x = 4,194,456,513.57
  5. Step 5: Solve for x
    x = 4,194,456,513.57/74,687.34
  6. Step 6: Final answer
    x = 56,160.21

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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.