Finding the Fourth Proportional to 79,661.96, 119,492.94 and 74,412.68
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Solution
The fourth proportional to 79,661.96, 119,492.94 and 74,412.68 is: 111,619.02
Step by Step Solution
- Step 1: Write the proportion equation
79,661.96 : 119,492.94 = 74,412.68 : x - Step 2: Convert to fraction form
79,661.96/119,492.94 = 74,412.68/x - Step 3: Cross multiply
79,661.96x = 119,492.94 × 74,412.68 - Step 4: Simplify right side
79,661.96x = 8,891,789,906.48 - Step 5: Solve for x
x = 8,891,789,906.48/79,661.96 - Step 6: Final answer
x = 111,619.02
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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.