Finding the Fourth Proportional to 85,893.67, 128,852.79 and 26,735.32
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Solution
The fourth proportional to 85,893.67, 128,852.79 and 26,735.32 is: 40,106.80
Step by Step Solution
- Step 1: Write the proportion equation
85,893.67 : 128,852.79 = 26,735.32 : x - Step 2: Convert to fraction form
85,893.67/128,852.79 = 26,735.32/x - Step 3: Cross multiply
85,893.67x = 128,852.79 × 26,735.32 - Step 4: Simplify right side
85,893.67x = 3,444,920,573.54 - Step 5: Solve for x
x = 3,444,920,573.54/85,893.67 - Step 6: Final answer
x = 40,106.80
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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.