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Finding the Fourth Proportional to 64,791.05, 89,413.13 and 36,113.65

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Solution

The fourth proportional to 64,791.05, 89,413.13 and 36,113.65 is: 49,837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,791.05 : 89,413.13 = 36,113.65 : x
  2. Step 2: Convert to fraction form
    64,791.05/89,413.13 = 36,113.65/x
  3. Step 3: Cross multiply
    64,791.05x = 89,413.13 × 36,113.65
  4. Step 4: Simplify right side
    64,791.05x = 3,229,034,301.66
  5. Step 5: Solve for x
    x = 3,229,034,301.66/64,791.05
  6. Step 6: Final answer
    x = 49,837.66

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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.