Finding the Fourth Proportional to 87,296.84, 120,540.66 and 71,166.68
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Solution
The fourth proportional to 87,296.84, 120,540.66 and 71,166.68 is: 98,267.92
Step by Step Solution
- Step 1: Write the proportion equation
87,296.84 : 120,540.66 = 71,166.68 : x - Step 2: Convert to fraction form
87,296.84/120,540.66 = 71,166.68/x - Step 3: Cross multiply
87,296.84x = 120,540.66 × 71,166.68 - Step 4: Simplify right side
87,296.84x = 8,578,478,577.21 - Step 5: Solve for x
x = 8,578,478,577.21/87,296.84 - Step 6: Final answer
x = 98,267.92
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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.