Finding the Fourth Proportional to 79,073.83, 109,121.82 and 43,263.99
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Solution
The fourth proportional to 79,073.83, 109,121.82 and 43,263.99 is: 59,704.27
Step by Step Solution
- Step 1: Write the proportion equation
79,073.83 : 109,121.82 = 43,263.99 : x - Step 2: Convert to fraction form
79,073.83/109,121.82 = 43,263.99/x - Step 3: Cross multiply
79,073.83x = 109,121.82 × 43,263.99 - Step 4: Simplify right side
79,073.83x = 4,721,045,329.26 - Step 5: Solve for x
x = 4,721,045,329.26/79,073.83 - Step 6: Final answer
x = 59,704.27
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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.