Home / 74,942.51-103,375.40-49,439.81

Finding the Fourth Proportional to 74,942.51, 103,375.40 and 49,439.81

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Solution

The fourth proportional to 74,942.51, 103,375.40 and 49,439.81 is: 68,197.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,942.51 : 103,375.40 = 49,439.81 : x
  2. Step 2: Convert to fraction form
    74,942.51/103,375.40 = 49,439.81/x
  3. Step 3: Cross multiply
    74,942.51x = 103,375.40 × 49,439.81
  4. Step 4: Simplify right side
    74,942.51x = 5,110,859,370.60
  5. Step 5: Solve for x
    x = 5,110,859,370.60/74,942.51
  6. Step 6: Final answer
    x = 68,197.07

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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.