Finding the Fourth Proportional to 74,239.68, 102,450.08 and 40,704.96
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Solution
The fourth proportional to 74,239.68, 102,450.08 and 40,704.96 is: 56,172.47
Step by Step Solution
- Step 1: Write the proportion equation
74,239.68 : 102,450.08 = 40,704.96 : x - Step 2: Convert to fraction form
74,239.68/102,450.08 = 40,704.96/x - Step 3: Cross multiply
74,239.68x = 102,450.08 × 40,704.96 - Step 4: Simplify right side
74,239.68x = 4,170,226,408.40 - Step 5: Solve for x
x = 4,170,226,408.40/74,239.68 - Step 6: Final answer
x = 56,172.47
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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.