Home / 45,716.24-68,601.61-20,413.79

Finding the Fourth Proportional to 45,716.24, 68,601.61 and 20,413.79

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Solution

The fourth proportional to 45,716.24, 68,601.61 and 20,413.79 is: 30,632.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,716.24 : 68,601.61 = 20,413.79 : x
  2. Step 2: Convert to fraction form
    45,716.24/68,601.61 = 20,413.79/x
  3. Step 3: Cross multiply
    45,716.24x = 68,601.61 × 20,413.79
  4. Step 4: Simplify right side
    45,716.24x = 1,400,418,980.67
  5. Step 5: Solve for x
    x = 1,400,418,980.67/45,716.24
  6. Step 6: Final answer
    x = 30,632.86

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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.