Home / 74,939.75-103,424.42-41,405.75

Finding the Fourth Proportional to 74,939.75, 103,424.42 and 41,405.75

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Solution

The fourth proportional to 74,939.75, 103,424.42 and 41,405.75 is: 57,144.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,939.75 : 103,424.42 = 41,405.75 : x
  2. Step 2: Convert to fraction form
    74,939.75/103,424.42 = 41,405.75/x
  3. Step 3: Cross multiply
    74,939.75x = 103,424.42 × 41,405.75
  4. Step 4: Simplify right side
    74,939.75x = 4,282,365,678.42
  5. Step 5: Solve for x
    x = 4,282,365,678.42/74,939.75
  6. Step 6: Final answer
    x = 57,144.11

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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.