Home / 74,404.15-102,678.62-40,413.04

Finding the Fourth Proportional to 74,404.15, 102,678.62 and 40,413.04

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Solution

The fourth proportional to 74,404.15, 102,678.62 and 40,413.04 is: 55,770.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,404.15 : 102,678.62 = 40,413.04 : x
  2. Step 2: Convert to fraction form
    74,404.15/102,678.62 = 40,413.04/x
  3. Step 3: Cross multiply
    74,404.15x = 102,678.62 × 40,413.04
  4. Step 4: Simplify right side
    74,404.15x = 4,149,554,718.44
  5. Step 5: Solve for x
    x = 4,149,554,718.44/74,404.15
  6. Step 6: Final answer
    x = 55,770.48

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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.