Finding the Fourth Proportional to 79,517.36, 119,295.57 and 39,555.20
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Solution
The fourth proportional to 79,517.36, 119,295.57 and 39,555.20 is: 59,342.52
Step by Step Solution
- Step 1: Write the proportion equation
79,517.36 : 119,295.57 = 39,555.20 : x - Step 2: Convert to fraction form
79,517.36/119,295.57 = 39,555.20/x - Step 3: Cross multiply
79,517.36x = 119,295.57 × 39,555.20 - Step 4: Simplify right side
79,517.36x = 4,718,760,130.46 - Step 5: Solve for x
x = 4,718,760,130.46/79,517.36 - Step 6: Final answer
x = 59,342.52
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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.