Finding the Fourth Proportional to 79,836.09, 119,756.29 and 19,862.14
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Solution
The fourth proportional to 79,836.09, 119,756.29 and 19,862.14 is: 29,793.75
Step by Step Solution
- Step 1: Write the proportion equation
79,836.09 : 119,756.29 = 19,862.14 : x - Step 2: Convert to fraction form
79,836.09/119,756.29 = 19,862.14/x - Step 3: Cross multiply
79,836.09x = 119,756.29 × 19,862.14 - Step 4: Simplify right side
79,836.09x = 2,378,616,446.90 - Step 5: Solve for x
x = 2,378,616,446.90/79,836.09 - Step 6: Final answer
x = 29,793.75
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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.