Finding the Fourth Proportional to 86,286.40, 119,051.98 and 50,485.21
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Solution
The fourth proportional to 86,286.40, 119,051.98 and 50,485.21 is: 69,655.99
Step by Step Solution
- Step 1: Write the proportion equation
86,286.40 : 119,051.98 = 50,485.21 : x - Step 2: Convert to fraction form
86,286.40/119,051.98 = 50,485.21/x - Step 3: Cross multiply
86,286.40x = 119,051.98 × 50,485.21 - Step 4: Simplify right side
86,286.40x = 6,010,364,211.22 - Step 5: Solve for x
x = 6,010,364,211.22/86,286.40 - Step 6: Final answer
x = 69,655.99
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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.