Finding the Fourth Proportional to 79,049.82, 118,658.27 and 77,264.99
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Solution
The fourth proportional to 79,049.82, 118,658.27 and 77,264.99 is: 115,979.14
Step by Step Solution
- Step 1: Write the proportion equation
79,049.82 : 118,658.27 = 77,264.99 : x - Step 2: Convert to fraction form
79,049.82/118,658.27 = 77,264.99/x - Step 3: Cross multiply
79,049.82x = 118,658.27 × 77,264.99 - Step 4: Simplify right side
79,049.82x = 9,168,130,044.97 - Step 5: Solve for x
x = 9,168,130,044.97/79,049.82 - Step 6: Final answer
x = 115,979.14
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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.