Finding the Fourth Proportional to 76,858.43, 114,523.61 and 68,474.02
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Solution
The fourth proportional to 76,858.43, 114,523.61 and 68,474.02 is: 102,030.34
Step by Step Solution
- Step 1: Write the proportion equation
76,858.43 : 114,523.61 = 68,474.02 : x - Step 2: Convert to fraction form
76,858.43/114,523.61 = 68,474.02/x - Step 3: Cross multiply
76,858.43x = 114,523.61 × 68,474.02 - Step 4: Simplify right side
76,858.43x = 7,841,891,619.24 - Step 5: Solve for x
x = 7,841,891,619.24/76,858.43 - Step 6: Final answer
x = 102,030.34
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.