Finding the Fourth Proportional to 79,118.97, 118,687.74 and 27,811.95
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Solution
The fourth proportional to 79,118.97, 118,687.74 and 27,811.95 is: 41,721.19
Step by Step Solution
- Step 1: Write the proportion equation
79,118.97 : 118,687.74 = 27,811.95 : x - Step 2: Convert to fraction form
79,118.97/118,687.74 = 27,811.95/x - Step 3: Cross multiply
79,118.97x = 118,687.74 × 27,811.95 - Step 4: Simplify right side
79,118.97x = 3,300,937,490.49 - Step 5: Solve for x
x = 3,300,937,490.49/79,118.97 - Step 6: Final answer
x = 41,721.19
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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.