Finding the Fourth Proportional to 89,759.40, 134,639.10 and 26,581.80
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Solution
The fourth proportional to 89,759.40, 134,639.10 and 26,581.80 is: 39,872.70
Step by Step Solution
- Step 1: Write the proportion equation
89,759.40 : 134,639.10 = 26,581.80 : x - Step 2: Convert to fraction form
89,759.40/134,639.10 = 26,581.80/x - Step 3: Cross multiply
89,759.40x = 134,639.10 × 26,581.80 - Step 4: Simplify right side
89,759.40x = 3,578,949,628.38 - Step 5: Solve for x
x = 3,578,949,628.38/89,759.40 - Step 6: Final answer
x = 39,872.70
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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.