Home / 80,914.68-111,620.70-54,048.60

Finding the Fourth Proportional to 80,914.68, 111,620.70 and 54,048.60

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Solution

The fourth proportional to 80,914.68, 111,620.70 and 54,048.60 is: 74,559.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,914.68 : 111,620.70 = 54,048.60 : x
  2. Step 2: Convert to fraction form
    80,914.68/111,620.70 = 54,048.60/x
  3. Step 3: Cross multiply
    80,914.68x = 111,620.70 × 54,048.60
  4. Step 4: Simplify right side
    80,914.68x = 6,032,942,566.02
  5. Step 5: Solve for x
    x = 6,032,942,566.02/80,914.68
  6. Step 6: Final answer
    x = 74,559.31

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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.