Finding the Fourth Proportional to 85,534.05, 128,319.30 and 26,375.70
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Solution
The fourth proportional to 85,534.05, 128,319.30 and 26,375.70 is: 39,569.17
Step by Step Solution
- Step 1: Write the proportion equation
85,534.05 : 128,319.30 = 26,375.70 : x - Step 2: Convert to fraction form
85,534.05/128,319.30 = 26,375.70/x - Step 3: Cross multiply
85,534.05x = 128,319.30 × 26,375.70 - Step 4: Simplify right side
85,534.05x = 3,384,511,361.01 - Step 5: Solve for x
x = 3,384,511,361.01/85,534.05 - Step 6: Final answer
x = 39,569.17
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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.