Finding the Fourth Proportional to 86,907.75, 119,932.70 and 47,163.75
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Solution
The fourth proportional to 86,907.75, 119,932.70 and 47,163.75 is: 65,085.98
Step by Step Solution
- Step 1: Write the proportion equation
86,907.75 : 119,932.70 = 47,163.75 : x - Step 2: Convert to fraction form
86,907.75/119,932.70 = 47,163.75/x - Step 3: Cross multiply
86,907.75x = 119,932.70 × 47,163.75 - Step 4: Simplify right side
86,907.75x = 5,656,475,643.81 - Step 5: Solve for x
x = 5,656,475,643.81/86,907.75 - Step 6: Final answer
x = 65,085.98
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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.