Finding the Fourth Proportional to 84,531.47, 126,797.25 and 68,717.66
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Solution
The fourth proportional to 84,531.47, 126,797.25 and 68,717.66 is: 103,076.53
Step by Step Solution
- Step 1: Write the proportion equation
84,531.47 : 126,797.25 = 68,717.66 : x - Step 2: Convert to fraction form
84,531.47/126,797.25 = 68,717.66/x - Step 3: Cross multiply
84,531.47x = 126,797.25 × 68,717.66 - Step 4: Simplify right side
84,531.47x = 8,713,210,314.44 - Step 5: Solve for x
x = 8,713,210,314.44/84,531.47 - Step 6: Final answer
x = 103,076.53
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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.