Home / 74,685.14-103,067.96-40,696.32

Finding the Fourth Proportional to 74,685.14, 103,067.96 and 40,696.32

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Solution

The fourth proportional to 74,685.14, 103,067.96 and 40,696.32 is: 56,162.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,685.14 : 103,067.96 = 40,696.32 : x
  2. Step 2: Convert to fraction form
    74,685.14/103,067.96 = 40,696.32/x
  3. Step 3: Cross multiply
    74,685.14x = 103,067.96 × 40,696.32
  4. Step 4: Simplify right side
    74,685.14x = 4,194,486,681.91
  5. Step 5: Solve for x
    x = 4,194,486,681.91/74,685.14
  6. Step 6: Final answer
    x = 56,162.27

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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.