Finding the Fourth Proportional to 79,629.84, 119,518.61 and 40,214.66
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Solution
The fourth proportional to 79,629.84, 119,518.61 and 40,214.66 is: 60,359.28
Step by Step Solution
- Step 1: Write the proportion equation
79,629.84 : 119,518.61 = 40,214.66 : x - Step 2: Convert to fraction form
79,629.84/119,518.61 = 40,214.66/x - Step 3: Cross multiply
79,629.84x = 119,518.61 × 40,214.66 - Step 4: Simplify right side
79,629.84x = 4,806,399,466.16 - Step 5: Solve for x
x = 4,806,399,466.16/79,629.84 - Step 6: Final answer
x = 60,359.28
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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.