Finding the Fourth Proportional to 88,383.44, 121,967.88 and 48,639.44
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Solution
The fourth proportional to 88,383.44, 121,967.88 and 48,639.44 is: 67,121.73
Step by Step Solution
- Step 1: Write the proportion equation
88,383.44 : 121,967.88 = 48,639.44 : x - Step 2: Convert to fraction form
88,383.44/121,967.88 = 48,639.44/x - Step 3: Cross multiply
88,383.44x = 121,967.88 × 48,639.44 - Step 4: Simplify right side
88,383.44x = 5,932,449,381.19 - Step 5: Solve for x
x = 5,932,449,381.19/88,383.44 - Step 6: Final answer
x = 67,121.73
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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.