Finding the Fourth Proportional to 68,639.40, 102,959.10 and 24,265.80
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Solution
The fourth proportional to 68,639.40, 102,959.10 and 24,265.80 is: 36,398.70
Step by Step Solution
- Step 1: Write the proportion equation
68,639.40 : 102,959.10 = 24,265.80 : x - Step 2: Convert to fraction form
68,639.40/102,959.10 = 24,265.80/x - Step 3: Cross multiply
68,639.40x = 102,959.10 × 24,265.80 - Step 4: Simplify right side
68,639.40x = 2,498,384,928.78 - Step 5: Solve for x
x = 2,498,384,928.78/68,639.40 - Step 6: Final answer
x = 36,398.70
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1.5x scale
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.