Finding the Fourth Proportional to 81,635.84, 122,462.72 and 34,893.44
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Solution
The fourth proportional to 81,635.84, 122,462.72 and 34,893.44 is: 52,343.99
Step by Step Solution
- Step 1: Write the proportion equation
81,635.84 : 122,462.72 = 34,893.44 : x - Step 2: Convert to fraction form
81,635.84/122,462.72 = 34,893.44/x - Step 3: Cross multiply
81,635.84x = 122,462.72 × 34,893.44 - Step 4: Simplify right side
81,635.84x = 4,273,145,572.56 - Step 5: Solve for x
x = 4,273,145,572.56/81,635.84 - Step 6: Final answer
x = 52,343.99
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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.