Home / 89,375.12-133,907.82-54,241.16

Finding the Fourth Proportional to 89,375.12, 133,907.82 and 54,241.16

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Solution

The fourth proportional to 89,375.12, 133,907.82 and 54,241.16 is: 81,267.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,375.12 : 133,907.82 = 54,241.16 : x
  2. Step 2: Convert to fraction form
    89,375.12/133,907.82 = 54,241.16/x
  3. Step 3: Cross multiply
    89,375.12x = 133,907.82 × 54,241.16
  4. Step 4: Simplify right side
    89,375.12x = 7,263,315,489.87
  5. Step 5: Solve for x
    x = 7,263,315,489.87/89,375.12
  6. Step 6: Final answer
    x = 81,267.76

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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.