Home / 74,204.98-102,413.37-45,919.78

Finding the Fourth Proportional to 74,204.98, 102,413.37 and 45,919.78

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Solution

The fourth proportional to 74,204.98, 102,413.37 and 45,919.78 is: 63,375.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,204.98 : 102,413.37 = 45,919.78 : x
  2. Step 2: Convert to fraction form
    74,204.98/102,413.37 = 45,919.78/x
  3. Step 3: Cross multiply
    74,204.98x = 102,413.37 × 45,919.78
  4. Step 4: Simplify right side
    74,204.98x = 4,702,799,419.46
  5. Step 5: Solve for x
    x = 4,702,799,419.46/74,204.98
  6. Step 6: Final answer
    x = 63,375.79

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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.