Finding the Fourth Proportional to 79,236.36, 118,853.64 and 19,265.18
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Solution
The fourth proportional to 79,236.36, 118,853.64 and 19,265.18 is: 28,897.54
Step by Step Solution
- Step 1: Write the proportion equation
79,236.36 : 118,853.64 = 19,265.18 : x - Step 2: Convert to fraction form
79,236.36/118,853.64 = 19,265.18/x - Step 3: Cross multiply
79,236.36x = 118,853.64 × 19,265.18 - Step 4: Simplify right side
79,236.36x = 2,289,736,173.99 - Step 5: Solve for x
x = 2,289,736,173.99/79,236.36 - Step 6: Final answer
x = 28,897.54
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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.