Finding the Fourth Proportional to 75,431.29, 104,116.13 and 43,183.98
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Solution
The fourth proportional to 75,431.29, 104,116.13 and 43,183.98 is: 59,605.88
Step by Step Solution
- Step 1: Write the proportion equation
75,431.29 : 104,116.13 = 43,183.98 : x - Step 2: Convert to fraction form
75,431.29/104,116.13 = 43,183.98/x - Step 3: Cross multiply
75,431.29x = 104,116.13 × 43,183.98 - Step 4: Simplify right side
75,431.29x = 4,496,148,771.70 - Step 5: Solve for x
x = 4,496,148,771.70/75,431.29 - Step 6: Final answer
x = 59,605.88
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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.