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Finding the Fourth Proportional to 69,539, 103,413.93 and 67,324.74

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Solution

The fourth proportional to 69,539, 103,413.93 and 67,324.74 is: 100,121.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,539 : 103,413.93 = 67,324.74 : x
  2. Step 2: Convert to fraction form
    69,539/103,413.93 = 67,324.74/x
  3. Step 3: Cross multiply
    69,539x = 103,413.93 × 67,324.74
  4. Step 4: Simplify right side
    69,539x = 6,962,315,949.63
  5. Step 5: Solve for x
    x = 6,962,315,949.63/69,539
  6. Step 6: Final answer
    x = 100,121.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.