Finding the Fourth Proportional to 74,771.36, 112,190.09 and 39,224.19
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Solution
The fourth proportional to 74,771.36, 112,190.09 and 39,224.19 is: 58,853.62
Step by Step Solution
- Step 1: Write the proportion equation
74,771.36 : 112,190.09 = 39,224.19 : x - Step 2: Convert to fraction form
74,771.36/112,190.09 = 39,224.19/x - Step 3: Cross multiply
74,771.36x = 112,190.09 × 39,224.19 - Step 4: Simplify right side
74,771.36x = 4,400,565,210.16 - Step 5: Solve for x
x = 4,400,565,210.16/74,771.36 - Step 6: Final answer
x = 58,853.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.