Finding the Fourth Proportional to 87,692.68, 131,655.57 and 46,168.84
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Solution
The fourth proportional to 87,692.68, 131,655.57 and 46,168.84 is: 69,314.62
Step by Step Solution
- Step 1: Write the proportion equation
87,692.68 : 131,655.57 = 46,168.84 : x - Step 2: Convert to fraction form
87,692.68/131,655.57 = 46,168.84/x - Step 3: Cross multiply
87,692.68x = 131,655.57 × 46,168.84 - Step 4: Simplify right side
87,692.68x = 6,078,384,946.44 - Step 5: Solve for x
x = 6,078,384,946.44/87,692.68 - Step 6: Final answer
x = 69,314.62
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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.