Finding the Fourth Proportional to 79,579.19, 119,294.57 and 54,630.99
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Solution
The fourth proportional to 79,579.19, 119,294.57 and 54,630.99 is: 81,895.54
Step by Step Solution
- Step 1: Write the proportion equation
79,579.19 : 119,294.57 = 54,630.99 : x - Step 2: Convert to fraction form
79,579.19/119,294.57 = 54,630.99/x - Step 3: Cross multiply
79,579.19x = 119,294.57 × 54,630.99 - Step 4: Simplify right side
79,579.19x = 6,517,180,597.30 - Step 5: Solve for x
x = 6,517,180,597.30/79,579.19 - Step 6: Final answer
x = 81,895.54
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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.