Home / 77,942.66-107,413.88-56,395.92

Finding the Fourth Proportional to 77,942.66, 107,413.88 and 56,395.92

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Solution

The fourth proportional to 77,942.66, 107,413.88 and 56,395.92 is: 77,720.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,942.66 : 107,413.88 = 56,395.92 : x
  2. Step 2: Convert to fraction form
    77,942.66/107,413.88 = 56,395.92/x
  3. Step 3: Cross multiply
    77,942.66x = 107,413.88 × 56,395.92
  4. Step 4: Simplify right side
    77,942.66x = 6,057,704,583.37
  5. Step 5: Solve for x
    x = 6,057,704,583.37/77,942.66
  6. Step 6: Final answer
    x = 77,720.01

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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.