Finding the Fourth Proportional to 76,858.44, 114,523.61 and 68,474.03
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Solution
The fourth proportional to 76,858.44, 114,523.61 and 68,474.03 is: 102,030.33
Step by Step Solution
- Step 1: Write the proportion equation
76,858.44 : 114,523.61 = 68,474.03 : x - Step 2: Convert to fraction form
76,858.44/114,523.61 = 68,474.03/x - Step 3: Cross multiply
76,858.44x = 114,523.61 × 68,474.03 - Step 4: Simplify right side
76,858.44x = 7,841,892,191.86 - Step 5: Solve for x
x = 7,841,892,191.86/76,858.44 - Step 6: Final answer
x = 102,030.33
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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.