Home / 40,147.94-55,413.36-26,719.76

Finding the Fourth Proportional to 40,147.94, 55,413.36 and 26,719.76

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Solution

The fourth proportional to 40,147.94, 55,413.36 and 26,719.76 is: 36,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,147.94 : 55,413.36 = 26,719.76 : x
  2. Step 2: Convert to fraction form
    40,147.94/55,413.36 = 26,719.76/x
  3. Step 3: Cross multiply
    40,147.94x = 55,413.36 × 26,719.76
  4. Step 4: Simplify right side
    40,147.94x = 1,480,631,679.99
  5. Step 5: Solve for x
    x = 1,480,631,679.99/40,147.94
  6. Step 6: Final answer
    x = 36,879.39

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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.