Finding the Fourth Proportional to 73,680.09, 101,678.54 and 40,146.09
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Solution
The fourth proportional to 73,680.09, 101,678.54 and 40,146.09 is: 55,401.61
Step by Step Solution
- Step 1: Write the proportion equation
73,680.09 : 101,678.54 = 40,146.09 : x - Step 2: Convert to fraction form
73,680.09/101,678.54 = 40,146.09/x - Step 3: Cross multiply
73,680.09x = 101,678.54 × 40,146.09 - Step 4: Simplify right side
73,680.09x = 4,081,995,817.91 - Step 5: Solve for x
x = 4,081,995,817.91/73,680.09 - Step 6: Final answer
x = 55,401.61
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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.