Finding the Fourth Proportional to 85,433.19, 117,877.84 and 49,601.62
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Solution
The fourth proportional to 85,433.19, 117,877.84 and 49,601.62 is: 68,438.65
Step by Step Solution
- Step 1: Write the proportion equation
85,433.19 : 117,877.84 = 49,601.62 : x - Step 2: Convert to fraction form
85,433.19/117,877.84 = 49,601.62/x - Step 3: Cross multiply
85,433.19x = 117,877.84 × 49,601.62 - Step 4: Simplify right side
85,433.19x = 5,846,931,826.10 - Step 5: Solve for x
x = 5,846,931,826.10/85,433.19 - Step 6: Final answer
x = 68,438.65
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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.