Finding the Fourth Proportional to 86,622.64, 129,938.58 and 27,462.94
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Solution
The fourth proportional to 86,622.64, 129,938.58 and 27,462.94 is: 41,195.87
Step by Step Solution
- Step 1: Write the proportion equation
86,622.64 : 129,938.58 = 27,462.94 : x - Step 2: Convert to fraction form
86,622.64/129,938.58 = 27,462.94/x - Step 3: Cross multiply
86,622.64x = 129,938.58 × 27,462.94 - Step 4: Simplify right side
86,622.64x = 3,568,495,426.23 - Step 5: Solve for x
x = 3,568,495,426.23/86,622.64 - Step 6: Final answer
x = 41,195.87
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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.