Finding the Fourth Proportional to 79,699.92, 119,812.68 and 66,577.92
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Solution
The fourth proportional to 79,699.92, 119,812.68 and 66,577.92 is: 100,086.41
Step by Step Solution
- Step 1: Write the proportion equation
79,699.92 : 119,812.68 = 66,577.92 : x - Step 2: Convert to fraction form
79,699.92/119,812.68 = 66,577.92/x - Step 3: Cross multiply
79,699.92x = 119,812.68 × 66,577.92 - Step 4: Simplify right side
79,699.92x = 7,976,879,024.03 - Step 5: Solve for x
x = 7,976,879,024.03/79,699.92 - Step 6: Final answer
x = 100,086.41
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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.