Finding the Fourth Proportional to 85,318.97, 127,979.14 and 55,922.96
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Solution
The fourth proportional to 85,318.97, 127,979.14 and 55,922.96 is: 83,884.88
Step by Step Solution
- Step 1: Write the proportion equation
85,318.97 : 127,979.14 = 55,922.96 : x - Step 2: Convert to fraction form
85,318.97/127,979.14 = 55,922.96/x - Step 3: Cross multiply
85,318.97x = 127,979.14 × 55,922.96 - Step 4: Simplify right side
85,318.97x = 7,156,971,892.17 - Step 5: Solve for x
x = 7,156,971,892.17/85,318.97 - Step 6: Final answer
x = 83,884.88
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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.