Home / 80,945.88-121,413.96-30,334.92

Finding the Fourth Proportional to 80,945.88, 121,413.96 and 30,334.92

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Solution

The fourth proportional to 80,945.88, 121,413.96 and 30,334.92 is: 45,500.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,945.88 : 121,413.96 = 30,334.92 : x
  2. Step 2: Convert to fraction form
    80,945.88/121,413.96 = 30,334.92/x
  3. Step 3: Cross multiply
    80,945.88x = 121,413.96 × 30,334.92
  4. Step 4: Simplify right side
    80,945.88x = 3,683,082,763.48
  5. Step 5: Solve for x
    x = 3,683,082,763.48/80,945.88
  6. Step 6: Final answer
    x = 45,500.56

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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.