Finding the Fourth Proportional to 99,596.96, 149,392.44 and 40,431.20
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Solution
The fourth proportional to 99,596.96, 149,392.44 and 40,431.20 is: 60,645.58
Step by Step Solution
- Step 1: Write the proportion equation
99,596.96 : 149,392.44 = 40,431.20 : x - Step 2: Convert to fraction form
99,596.96/149,392.44 = 40,431.20/x - Step 3: Cross multiply
99,596.96x = 149,392.44 × 40,431.20 - Step 4: Simplify right side
99,596.96x = 6,040,115,620.13 - Step 5: Solve for x
x = 6,040,115,620.13/99,596.96 - Step 6: Final answer
x = 60,645.58
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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.