Home / 77,617.65-107,122.26-47,396.61

Finding the Fourth Proportional to 77,617.65, 107,122.26 and 47,396.61

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Solution

The fourth proportional to 77,617.65, 107,122.26 and 47,396.61 is: 65,413.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,617.65 : 107,122.26 = 47,396.61 : x
  2. Step 2: Convert to fraction form
    77,617.65/107,122.26 = 47,396.61/x
  3. Step 3: Cross multiply
    77,617.65x = 107,122.26 × 47,396.61
  4. Step 4: Simplify right side
    77,617.65x = 5,077,231,890.67
  5. Step 5: Solve for x
    x = 5,077,231,890.67/77,617.65
  6. Step 6: Final answer
    x = 65,413.37

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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.