Finding the Fourth Proportional to 86,226.09, 118,990.79 and 48,500.25
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Solution
The fourth proportional to 86,226.09, 118,990.79 and 48,500.25 is: 66,929.66
Step by Step Solution
- Step 1: Write the proportion equation
86,226.09 : 118,990.79 = 48,500.25 : x - Step 2: Convert to fraction form
86,226.09/118,990.79 = 48,500.25/x - Step 3: Cross multiply
86,226.09x = 118,990.79 × 48,500.25 - Step 4: Simplify right side
86,226.09x = 5,771,082,820.20 - Step 5: Solve for x
x = 5,771,082,820.20/86,226.09 - Step 6: Final answer
x = 66,929.66
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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.