Finding the Fourth Proportional to 80,943.69, 121,386.36 and 34,200.21
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Solution
The fourth proportional to 80,943.69, 121,386.36 and 34,200.21 is: 51,287.99
Step by Step Solution
- Step 1: Write the proportion equation
80,943.69 : 121,386.36 = 34,200.21 : x - Step 2: Convert to fraction form
80,943.69/121,386.36 = 34,200.21/x - Step 3: Cross multiply
80,943.69x = 121,386.36 × 34,200.21 - Step 4: Simplify right side
80,943.69x = 4,151,439,003.14 - Step 5: Solve for x
x = 4,151,439,003.14/80,943.69 - Step 6: Final answer
x = 51,287.99
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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.