Finding the Fourth Proportional to 79,658.97, 109,930.12 and 43,849.69
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Solution
The fourth proportional to 79,658.97, 109,930.12 and 43,849.69 is: 60,512.99
Step by Step Solution
- Step 1: Write the proportion equation
79,658.97 : 109,930.12 = 43,849.69 : x - Step 2: Convert to fraction form
79,658.97/109,930.12 = 43,849.69/x - Step 3: Cross multiply
79,658.97x = 109,930.12 × 43,849.69 - Step 4: Simplify right side
79,658.97x = 4,820,402,071.30 - Step 5: Solve for x
x = 4,820,402,071.30/79,658.97 - Step 6: Final answer
x = 60,512.99
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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.