Finding the Fourth Proportional to 79,448.31, 119,172.33 and 20,283.99
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Solution
The fourth proportional to 79,448.31, 119,172.33 and 20,283.99 is: 30,425.95
Step by Step Solution
- Step 1: Write the proportion equation
79,448.31 : 119,172.33 = 20,283.99 : x - Step 2: Convert to fraction form
79,448.31/119,172.33 = 20,283.99/x - Step 3: Cross multiply
79,448.31x = 119,172.33 × 20,283.99 - Step 4: Simplify right side
79,448.31x = 2,417,290,350.00 - Step 5: Solve for x
x = 2,417,290,350.00/79,448.31 - Step 6: Final answer
x = 30,425.95
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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.