Finding the Fourth Proportional to 76,678.36, 114,864.37 and 60,910.09
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Solution
The fourth proportional to 76,678.36, 114,864.37 and 60,910.09 is: 91,243.46
Step by Step Solution
- Step 1: Write the proportion equation
76,678.36 : 114,864.37 = 60,910.09 : x - Step 2: Convert to fraction form
76,678.36/114,864.37 = 60,910.09/x - Step 3: Cross multiply
76,678.36x = 114,864.37 × 60,910.09 - Step 4: Simplify right side
76,678.36x = 6,996,399,114.49 - Step 5: Solve for x
x = 6,996,399,114.49/76,678.36 - Step 6: Final answer
x = 91,243.46
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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.