Home / 69,185.32-103,778.02-53,413.38

Finding the Fourth Proportional to 69,185.32, 103,778.02 and 53,413.38

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Solution

The fourth proportional to 69,185.32, 103,778.02 and 53,413.38 is: 80,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,185.32 : 103,778.02 = 53,413.38 : x
  2. Step 2: Convert to fraction form
    69,185.32/103,778.02 = 53,413.38/x
  3. Step 3: Cross multiply
    69,185.32x = 103,778.02 × 53,413.38
  4. Step 4: Simplify right side
    69,185.32x = 5,543,134,817.91
  5. Step 5: Solve for x
    x = 5,543,134,817.91/69,185.32
  6. Step 6: Final answer
    x = 80,120.10

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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.