Finding the Fourth Proportional to 78,297.46, 117,442.01 and 27,692.98
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Solution
The fourth proportional to 78,297.46, 117,442.01 and 27,692.98 is: 41,537.99
Step by Step Solution
- Step 1: Write the proportion equation
78,297.46 : 117,442.01 = 27,692.98 : x - Step 2: Convert to fraction form
78,297.46/117,442.01 = 27,692.98/x - Step 3: Cross multiply
78,297.46x = 117,442.01 × 27,692.98 - Step 4: Simplify right side
78,297.46x = 3,252,319,234.09 - Step 5: Solve for x
x = 3,252,319,234.09/78,297.46 - Step 6: Final answer
x = 41,537.99
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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.