Finding the Fourth Proportional to 88,405.28, 121,997.60 and 48,119.84
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Solution
The fourth proportional to 88,405.28, 121,997.60 and 48,119.84 is: 66,404.46
Step by Step Solution
- Step 1: Write the proportion equation
88,405.28 : 121,997.60 = 48,119.84 : x - Step 2: Convert to fraction form
88,405.28/121,997.60 = 48,119.84/x - Step 3: Cross multiply
88,405.28x = 121,997.60 × 48,119.84 - Step 4: Simplify right side
88,405.28x = 5,870,504,992.38 - Step 5: Solve for x
x = 5,870,504,992.38/88,405.28 - Step 6: Final answer
x = 66,404.46
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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.