Finding the Fourth Proportional to 89,245.80, 133,786.68 and 38,613.18
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Solution
The fourth proportional to 89,245.80, 133,786.68 and 38,613.18 is: 57,884.28
Step by Step Solution
- Step 1: Write the proportion equation
89,245.80 : 133,786.68 = 38,613.18 : x - Step 2: Convert to fraction form
89,245.80/133,786.68 = 38,613.18/x - Step 3: Cross multiply
89,245.80x = 133,786.68 × 38,613.18 - Step 4: Simplify right side
89,245.80x = 5,165,929,156.44 - Step 5: Solve for x
x = 5,165,929,156.44/89,245.80 - Step 6: Final answer
x = 57,884.28
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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.