Finding the Fourth Proportional to 78,797.36, 118,197.12 and 26,206.88
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Solution
The fourth proportional to 78,797.36, 118,197.12 and 26,206.88 is: 39,310.68
Step by Step Solution
- Step 1: Write the proportion equation
78,797.36 : 118,197.12 = 26,206.88 : x - Step 2: Convert to fraction form
78,797.36/118,197.12 = 26,206.88/x - Step 3: Cross multiply
78,797.36x = 118,197.12 × 26,206.88 - Step 4: Simplify right side
78,797.36x = 3,097,577,740.19 - Step 5: Solve for x
x = 3,097,577,740.19/78,797.36 - Step 6: Final answer
x = 39,310.68
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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.