Finding the Fourth Proportional to 79,346.26, 118,940.55 and 39,782.62
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Solution
The fourth proportional to 79,346.26, 118,940.55 and 39,782.62 is: 59,634.40
Step by Step Solution
- Step 1: Write the proportion equation
79,346.26 : 118,940.55 = 39,782.62 : x - Step 2: Convert to fraction form
79,346.26/118,940.55 = 39,782.62/x - Step 3: Cross multiply
79,346.26x = 118,940.55 × 39,782.62 - Step 4: Simplify right side
79,346.26x = 4,731,766,703.24 - Step 5: Solve for x
x = 4,731,766,703.24/79,346.26 - Step 6: Final answer
x = 59,634.40
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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.