Home / 99,450.25-137,241.35-54,738.25

Finding the Fourth Proportional to 99,450.25, 137,241.35 and 54,738.25

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Solution

The fourth proportional to 99,450.25, 137,241.35 and 54,738.25 is: 75,538.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,450.25 : 137,241.35 = 54,738.25 : x
  2. Step 2: Convert to fraction form
    99,450.25/137,241.35 = 54,738.25/x
  3. Step 3: Cross multiply
    99,450.25x = 137,241.35 × 54,738.25
  4. Step 4: Simplify right side
    99,450.25x = 7,512,351,326.64
  5. Step 5: Solve for x
    x = 7,512,351,326.64/99,450.25
  6. Step 6: Final answer
    x = 75,538.79

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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.