Finding the Fourth Proportional to 68,704.08, 102,976.20 and 56,245.20
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Solution
The fourth proportional to 68,704.08, 102,976.20 and 56,245.20 is: 84,302.37
Step by Step Solution
- Step 1: Write the proportion equation
68,704.08 : 102,976.20 = 56,245.20 : x - Step 2: Convert to fraction form
68,704.08/102,976.20 = 56,245.20/x - Step 3: Cross multiply
68,704.08x = 102,976.20 × 56,245.20 - Step 4: Simplify right side
68,704.08x = 5,791,916,964.24 - Step 5: Solve for x
x = 5,791,916,964.24/68,704.08 - Step 6: Final answer
x = 84,302.37
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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.