Finding the Fourth Proportional to 86,794.55, 130,190.88 and 65,863.14
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Solution
The fourth proportional to 86,794.55, 130,190.88 and 65,863.14 is: 98,793.99
Step by Step Solution
- Step 1: Write the proportion equation
86,794.55 : 130,190.88 = 65,863.14 : x - Step 2: Convert to fraction form
86,794.55/130,190.88 = 65,863.14/x - Step 3: Cross multiply
86,794.55x = 130,190.88 × 65,863.14 - Step 4: Simplify right side
86,794.55x = 8,574,780,403.15 - Step 5: Solve for x
x = 8,574,780,403.15/86,794.55 - Step 6: Final answer
x = 98,793.99
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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.