Finding the Fourth Proportional to 79,319.99, 118,926.75 and 31,244.64
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Solution
The fourth proportional to 79,319.99, 118,926.75 and 31,244.64 is: 46,845.99
Step by Step Solution
- Step 1: Write the proportion equation
79,319.99 : 118,926.75 = 31,244.64 : x - Step 2: Convert to fraction form
79,319.99/118,926.75 = 31,244.64/x - Step 3: Cross multiply
79,319.99x = 118,926.75 × 31,244.64 - Step 4: Simplify right side
79,319.99x = 3,715,823,654.52 - Step 5: Solve for x
x = 3,715,823,654.52/79,319.99 - Step 6: Final answer
x = 46,845.99
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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.