Finding the Fourth Proportional to 79,904.61, 119,910.42 and 33,157.53
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Solution
The fourth proportional to 79,904.61, 119,910.42 and 33,157.53 is: 49,758.50
Step by Step Solution
- Step 1: Write the proportion equation
79,904.61 : 119,910.42 = 33,157.53 : x - Step 2: Convert to fraction form
79,904.61/119,910.42 = 33,157.53/x - Step 3: Cross multiply
79,904.61x = 119,910.42 × 33,157.53 - Step 4: Simplify right side
79,904.61x = 3,975,933,348.46 - Step 5: Solve for x
x = 3,975,933,348.46/79,904.61 - Step 6: Final answer
x = 49,758.50
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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.