Finding the Fourth Proportional to 74,619.96, 111,894.84 and 30,212.94
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Solution
The fourth proportional to 74,619.96, 111,894.84 and 30,212.94 is: 45,305.20
Step by Step Solution
- Step 1: Write the proportion equation
74,619.96 : 111,894.84 = 30,212.94 : x - Step 2: Convert to fraction form
74,619.96/111,894.84 = 30,212.94/x - Step 3: Cross multiply
74,619.96x = 111,894.84 × 30,212.94 - Step 4: Simplify right side
74,619.96x = 3,380,672,087.23 - Step 5: Solve for x
x = 3,380,672,087.23/74,619.96 - Step 6: Final answer
x = 45,305.20
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1.5x scale
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.