Finding the Fourth Proportional to 88,388.92, 121,974.74 and 48,102.80
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Solution
The fourth proportional to 88,388.92, 121,974.74 and 48,102.80 is: 66,380.79
Step by Step Solution
- Step 1: Write the proportion equation
88,388.92 : 121,974.74 = 48,102.80 : x - Step 2: Convert to fraction form
88,388.92/121,974.74 = 48,102.80/x - Step 3: Cross multiply
88,388.92x = 121,974.74 × 48,102.80 - Step 4: Simplify right side
88,388.92x = 5,867,326,523.27 - Step 5: Solve for x
x = 5,867,326,523.27/88,388.92 - Step 6: Final answer
x = 66,380.79
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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.