Finding the Fourth Proportional to 79,787.09, 110,211.36 and 59,608.91
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Solution
The fourth proportional to 79,787.09, 110,211.36 and 59,608.91 is: 82,338.87
Step by Step Solution
- Step 1: Write the proportion equation
79,787.09 : 110,211.36 = 59,608.91 : x - Step 2: Convert to fraction form
79,787.09/110,211.36 = 59,608.91/x - Step 3: Cross multiply
79,787.09x = 110,211.36 × 59,608.91 - Step 4: Simplify right side
79,787.09x = 6,569,579,039.22 - Step 5: Solve for x
x = 6,569,579,039.22/79,787.09 - Step 6: Final answer
x = 82,338.87
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1.5x scale
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.