Finding the Fourth Proportional to 87,185.64, 120,316.26 and 48,939.84
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Solution
The fourth proportional to 87,185.64, 120,316.26 and 48,939.84 is: 67,537.02
Step by Step Solution
- Step 1: Write the proportion equation
87,185.64 : 120,316.26 = 48,939.84 : x - Step 2: Convert to fraction form
87,185.64/120,316.26 = 48,939.84/x - Step 3: Cross multiply
87,185.64x = 120,316.26 × 48,939.84 - Step 4: Simplify right side
87,185.64x = 5,888,258,513.80 - Step 5: Solve for x
x = 5,888,258,513.80/87,185.64 - Step 6: Final answer
x = 67,537.02
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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.