Finding the Fourth Proportional to 85,355.44, 128,033.19 and 29,196.09
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Solution
The fourth proportional to 85,355.44, 128,033.19 and 29,196.09 is: 43,794.15
Step by Step Solution
- Step 1: Write the proportion equation
85,355.44 : 128,033.19 = 29,196.09 : x - Step 2: Convert to fraction form
85,355.44/128,033.19 = 29,196.09/x - Step 3: Cross multiply
85,355.44x = 128,033.19 × 29,196.09 - Step 4: Simplify right side
85,355.44x = 3,738,068,538.23 - Step 5: Solve for x
x = 3,738,068,538.23/85,355.44 - Step 6: Final answer
x = 43,794.15
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1.5x scale
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.