Finding the Fourth Proportional to 79,696.80, 119,541.12 and 27,107.28
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Solution
The fourth proportional to 79,696.80, 119,541.12 and 27,107.28 is: 40,659.53
Step by Step Solution
- Step 1: Write the proportion equation
79,696.80 : 119,541.12 = 27,107.28 : x - Step 2: Convert to fraction form
79,696.80/119,541.12 = 27,107.28/x - Step 3: Cross multiply
79,696.80x = 119,541.12 × 27,107.28 - Step 4: Simplify right side
79,696.80x = 3,240,434,611.35 - Step 5: Solve for x
x = 3,240,434,611.35/79,696.80 - Step 6: Final answer
x = 40,659.53
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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.