Finding the Fourth Proportional to 92,321.18, 127,403.16 and 49,879.70
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Solution
The fourth proportional to 92,321.18, 127,403.16 and 49,879.70 is: 68,833.95
Step by Step Solution
- Step 1: Write the proportion equation
92,321.18 : 127,403.16 = 49,879.70 : x - Step 2: Convert to fraction form
92,321.18/127,403.16 = 49,879.70/x - Step 3: Cross multiply
92,321.18x = 127,403.16 × 49,879.70 - Step 4: Simplify right side
92,321.18x = 6,354,831,399.85 - Step 5: Solve for x
x = 6,354,831,399.85/92,321.18 - Step 6: Final answer
x = 68,833.95
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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.