Finding the Fourth Proportional to 86,197.60, 129,296.16 and 27,033.60
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Solution
The fourth proportional to 86,197.60, 129,296.16 and 27,033.60 is: 40,550.32
Step by Step Solution
- Step 1: Write the proportion equation
86,197.60 : 129,296.16 = 27,033.60 : x - Step 2: Convert to fraction form
86,197.60/129,296.16 = 27,033.60/x - Step 3: Cross multiply
86,197.60x = 129,296.16 × 27,033.60 - Step 4: Simplify right side
86,197.60x = 3,495,340,670.98 - Step 5: Solve for x
x = 3,495,340,670.98/86,197.60 - Step 6: Final answer
x = 40,550.32
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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.