Finding the Fourth Proportional to 68,874.96, 103,286.52 and 54,256.08
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Solution
The fourth proportional to 68,874.96, 103,286.52 and 54,256.08 is: 81,363.70
Step by Step Solution
- Step 1: Write the proportion equation
68,874.96 : 103,286.52 = 54,256.08 : x - Step 2: Convert to fraction form
68,874.96/103,286.52 = 54,256.08/x - Step 3: Cross multiply
68,874.96x = 103,286.52 × 54,256.08 - Step 4: Simplify right side
68,874.96x = 5,603,921,692.04 - Step 5: Solve for x
x = 5,603,921,692.04/68,874.96 - Step 6: Final answer
x = 81,363.70
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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.