Finding the Fourth Proportional to 84,724.26, 126,997.71 and 28,544.95
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Solution
The fourth proportional to 84,724.26, 126,997.71 and 28,544.95 is: 42,787.55
Step by Step Solution
- Step 1: Write the proportion equation
84,724.26 : 126,997.71 = 28,544.95 : x - Step 2: Convert to fraction form
84,724.26/126,997.71 = 28,544.95/x - Step 3: Cross multiply
84,724.26x = 126,997.71 × 28,544.95 - Step 4: Simplify right side
84,724.26x = 3,625,143,282.06 - Step 5: Solve for x
x = 3,625,143,282.06/84,724.26 - Step 6: Final answer
x = 42,787.55
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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.