Finding the Fourth Proportional to 89,694.58, 134,334.50 and 86,584.18
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Solution
The fourth proportional to 89,694.58, 134,334.50 and 86,584.18 is: 129,676.09
Step by Step Solution
- Step 1: Write the proportion equation
89,694.58 : 134,334.50 = 86,584.18 : x - Step 2: Convert to fraction form
89,694.58/134,334.50 = 86,584.18/x - Step 3: Cross multiply
89,694.58x = 134,334.50 × 86,584.18 - Step 4: Simplify right side
89,694.58x = 11,631,242,528.21 - Step 5: Solve for x
x = 11,631,242,528.21/89,694.58 - Step 6: Final answer
x = 129,676.09
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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.