Finding the Fourth Proportional to 79,852.97, 119,770.11 and 20,684.09
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Solution
The fourth proportional to 79,852.97, 119,770.11 and 20,684.09 is: 31,023.71
Step by Step Solution
- Step 1: Write the proportion equation
79,852.97 : 119,770.11 = 20,684.09 : x - Step 2: Convert to fraction form
79,852.97/119,770.11 = 20,684.09/x - Step 3: Cross multiply
79,852.97x = 119,770.11 × 20,684.09 - Step 4: Simplify right side
79,852.97x = 2,477,335,135.70 - Step 5: Solve for x
x = 2,477,335,135.70/79,852.97 - Step 6: Final answer
x = 31,023.71
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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.