Finding the Fourth Proportional to 79,468.49, 109,668.44 and 43,660.82
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Solution
The fourth proportional to 79,468.49, 109,668.44 and 43,660.82 is: 60,252.99
Step by Step Solution
- Step 1: Write the proportion equation
79,468.49 : 109,668.44 = 43,660.82 : x - Step 2: Convert to fraction form
79,468.49/109,668.44 = 43,660.82/x - Step 3: Cross multiply
79,468.49x = 109,668.44 × 43,660.82 - Step 4: Simplify right side
79,468.49x = 4,788,213,579.33 - Step 5: Solve for x
x = 4,788,213,579.33/79,468.49 - Step 6: Final answer
x = 60,252.99
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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.