Finding the Fourth Proportional to 70,201.80, 105,302.70 and 61,891.20
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Solution
The fourth proportional to 70,201.80, 105,302.70 and 61,891.20 is: 92,836.80
Step by Step Solution
- Step 1: Write the proportion equation
70,201.80 : 105,302.70 = 61,891.20 : x - Step 2: Convert to fraction form
70,201.80/105,302.70 = 61,891.20/x - Step 3: Cross multiply
70,201.80x = 105,302.70 × 61,891.20 - Step 4: Simplify right side
70,201.80x = 6,517,310,466.24 - Step 5: Solve for x
x = 6,517,310,466.24/70,201.80 - Step 6: Final answer
x = 92,836.80
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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.