Home / 80,603.09-111,157.93-54,800.44

Finding the Fourth Proportional to 80,603.09, 111,157.93 and 54,800.44

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Solution

The fourth proportional to 80,603.09, 111,157.93 and 54,800.44 is: 75,574.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,603.09 : 111,157.93 = 54,800.44 : x
  2. Step 2: Convert to fraction form
    80,603.09/111,157.93 = 54,800.44/x
  3. Step 3: Cross multiply
    80,603.09x = 111,157.93 × 54,800.44
  4. Step 4: Simplify right side
    80,603.09x = 6,091,503,473.49
  5. Step 5: Solve for x
    x = 6,091,503,473.49/80,603.09
  6. Step 6: Final answer
    x = 75,574.07

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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.