Finding the Fourth Proportional to 79,135.74, 109,207.98 and 43,326.09
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Solution
The fourth proportional to 79,135.74, 109,207.98 and 43,326.09 is: 59,790.36
Step by Step Solution
- Step 1: Write the proportion equation
79,135.74 : 109,207.98 = 43,326.09 : x - Step 2: Convert to fraction form
79,135.74/109,207.98 = 43,326.09/x - Step 3: Cross multiply
79,135.74x = 109,207.98 × 43,326.09 - Step 4: Simplify right side
79,135.74x = 4,731,554,770.20 - Step 5: Solve for x
x = 4,731,554,770.20/79,135.74 - Step 6: Final answer
x = 59,790.36
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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.