Finding the Fourth Proportional to 85,855.94, 118,481.19 and 48,130.19
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Solution
The fourth proportional to 85,855.94, 118,481.19 and 48,130.19 is: 66,419.66
Step by Step Solution
- Step 1: Write the proportion equation
85,855.94 : 118,481.19 = 48,130.19 : x - Step 2: Convert to fraction form
85,855.94/118,481.19 = 48,130.19/x - Step 3: Cross multiply
85,855.94x = 118,481.19 × 48,130.19 - Step 4: Simplify right side
85,855.94x = 5,702,522,186.13 - Step 5: Solve for x
x = 5,702,522,186.13/85,855.94 - Step 6: Final answer
x = 66,419.66
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.