Finding the Fourth Proportional to 92,403.40, 127,516.74 and 49,961.94
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Solution
The fourth proportional to 92,403.40, 127,516.74 and 49,961.94 is: 68,947.50
Step by Step Solution
- Step 1: Write the proportion equation
92,403.40 : 127,516.74 = 49,961.94 : x - Step 2: Convert to fraction form
92,403.40/127,516.74 = 49,961.94/x - Step 3: Cross multiply
92,403.40x = 127,516.74 × 49,961.94 - Step 4: Simplify right side
92,403.40x = 6,370,983,712.88 - Step 5: Solve for x
x = 6,370,983,712.88/92,403.40 - Step 6: Final answer
x = 68,947.50
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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.