Home / 81,172.80-111,945.93-50,960.94

Finding the Fourth Proportional to 81,172.80, 111,945.93 and 50,960.94

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Solution

The fourth proportional to 81,172.80, 111,945.93 and 50,960.94 is: 70,280.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,172.80 : 111,945.93 = 50,960.94 : x
  2. Step 2: Convert to fraction form
    81,172.80/111,945.93 = 50,960.94/x
  3. Step 3: Cross multiply
    81,172.80x = 111,945.93 × 50,960.94
  4. Step 4: Simplify right side
    81,172.80x = 5,704,869,821.97
  5. Step 5: Solve for x
    x = 5,704,869,821.97/81,172.80
  6. Step 6: Final answer
    x = 70,280.56

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1.5x scale

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.