Home / 74,997.09-103,413.51-48,129.39

Finding the Fourth Proportional to 74,997.09, 103,413.51 and 48,129.39

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Solution

The fourth proportional to 74,997.09, 103,413.51 and 48,129.39 is: 66,365.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,997.09 : 103,413.51 = 48,129.39 : x
  2. Step 2: Convert to fraction form
    74,997.09/103,413.51 = 48,129.39/x
  3. Step 3: Cross multiply
    74,997.09x = 103,413.51 × 48,129.39
  4. Step 4: Simplify right side
    74,997.09x = 4,977,229,154.06
  5. Step 5: Solve for x
    x = 4,977,229,154.06/74,997.09
  6. Step 6: Final answer
    x = 66,365.63

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1.5x scale

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.