Finding the Fourth Proportional to 79,190.39, 109,282.87 and 43,379.62
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Solution
The fourth proportional to 79,190.39, 109,282.87 and 43,379.62 is: 59,863.94
Step by Step Solution
- Step 1: Write the proportion equation
79,190.39 : 109,282.87 = 43,379.62 : x - Step 2: Convert to fraction form
79,190.39/109,282.87 = 43,379.62/x - Step 3: Cross multiply
79,190.39x = 109,282.87 × 43,379.62 - Step 4: Simplify right side
79,190.39x = 4,740,649,154.13 - Step 5: Solve for x
x = 4,740,649,154.13/79,190.39 - Step 6: Final answer
x = 59,863.94
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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.