Finding the Fourth Proportional to 81,182.87, 111,959.79 and 50,970.99
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Solution
The fourth proportional to 81,182.87, 111,959.79 and 50,970.99 is: 70,294.41
Step by Step Solution
- Step 1: Write the proportion equation
81,182.87 : 111,959.79 = 50,970.99 : x - Step 2: Convert to fraction form
81,182.87/111,959.79 = 50,970.99/x - Step 3: Cross multiply
81,182.87x = 111,959.79 × 50,970.99 - Step 4: Simplify right side
81,182.87x = 5,706,701,336.49 - Step 5: Solve for x
x = 5,706,701,336.49/81,182.87 - Step 6: Final answer
x = 70,294.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.