Home / 74,747.82-111,994.85-45,103.36

Finding the Fourth Proportional to 74,747.82, 111,994.85 and 45,103.36

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Solution

The fourth proportional to 74,747.82, 111,994.85 and 45,103.36 is: 67,578.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,747.82 : 111,994.85 = 45,103.36 : x
  2. Step 2: Convert to fraction form
    74,747.82/111,994.85 = 45,103.36/x
  3. Step 3: Cross multiply
    74,747.82x = 111,994.85 × 45,103.36
  4. Step 4: Simplify right side
    74,747.82x = 5,051,344,261.30
  5. Step 5: Solve for x
    x = 5,051,344,261.30/74,747.82
  6. Step 6: Final answer
    x = 67,578.48

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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.