Finding the Fourth Proportional to 85,305.94, 117,684.16 and 49,475.18
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Solution
The fourth proportional to 85,305.94, 117,684.16 and 49,475.18 is: 68,253.69
Step by Step Solution
- Step 1: Write the proportion equation
85,305.94 : 117,684.16 = 49,475.18 : x - Step 2: Convert to fraction form
85,305.94/117,684.16 = 49,475.18/x - Step 3: Cross multiply
85,305.94x = 117,684.16 × 49,475.18 - Step 4: Simplify right side
85,305.94x = 5,822,444,999.15 - Step 5: Solve for x
x = 5,822,444,999.15/85,305.94 - Step 6: Final answer
x = 68,253.69
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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.