Finding the Fourth Proportional to 85,504.84, 128,245.21 and 29,343.96
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Solution
The fourth proportional to 85,504.84, 128,245.21 and 29,343.96 is: 44,011.81
Step by Step Solution
- Step 1: Write the proportion equation
85,504.84 : 128,245.21 = 29,343.96 : x - Step 2: Convert to fraction form
85,504.84/128,245.21 = 29,343.96/x - Step 3: Cross multiply
85,504.84x = 128,245.21 × 29,343.96 - Step 4: Simplify right side
85,504.84x = 3,763,222,239.07 - Step 5: Solve for x
x = 3,763,222,239.07/85,504.84 - Step 6: Final answer
x = 44,011.81
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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.