Finding the Fourth Proportional to 79,984.19, 110,328.14 and 47,696.18
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Solution
The fourth proportional to 79,984.19, 110,328.14 and 47,696.18 is: 65,790.88
Step by Step Solution
- Step 1: Write the proportion equation
79,984.19 : 110,328.14 = 47,696.18 : x - Step 2: Convert to fraction form
79,984.19/110,328.14 = 47,696.18/x - Step 3: Cross multiply
79,984.19x = 110,328.14 × 47,696.18 - Step 4: Simplify right side
79,984.19x = 5,262,230,392.10 - Step 5: Solve for x
x = 5,262,230,392.10/79,984.19 - Step 6: Final answer
x = 65,790.88
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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.