Home / 74,570.33-102,907.25-40,578.81

Finding the Fourth Proportional to 74,570.33, 102,907.25 and 40,578.81

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Solution

The fourth proportional to 74,570.33, 102,907.25 and 40,578.81 is: 55,998.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,570.33 : 102,907.25 = 40,578.81 : x
  2. Step 2: Convert to fraction form
    74,570.33/102,907.25 = 40,578.81/x
  3. Step 3: Cross multiply
    74,570.33x = 102,907.25 × 40,578.81
  4. Step 4: Simplify right side
    74,570.33x = 4,175,853,308.75
  5. Step 5: Solve for x
    x = 4,175,853,308.75/74,570.33
  6. Step 6: Final answer
    x = 55,998.86

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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.