Home / 69,172.07-103,684.19-49,390.65

Finding the Fourth Proportional to 69,172.07, 103,684.19 and 49,390.65

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Solution

The fourth proportional to 69,172.07, 103,684.19 and 49,390.65 is: 74,033.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,172.07 : 103,684.19 = 49,390.65 : x
  2. Step 2: Convert to fraction form
    69,172.07/103,684.19 = 49,390.65/x
  3. Step 3: Cross multiply
    69,172.07x = 103,684.19 × 49,390.65
  4. Step 4: Simplify right side
    69,172.07x = 5,121,029,291.87
  5. Step 5: Solve for x
    x = 5,121,029,291.87/69,172.07
  6. Step 6: Final answer
    x = 74,033.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.