Finding the Fourth Proportional to 86,135.44, 118,876.75 and 47,898.80
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Solution
The fourth proportional to 86,135.44, 118,876.75 and 47,898.80 is: 66,105.82
Step by Step Solution
- Step 1: Write the proportion equation
86,135.44 : 118,876.75 = 47,898.80 : x - Step 2: Convert to fraction form
86,135.44/118,876.75 = 47,898.80/x - Step 3: Cross multiply
86,135.44x = 118,876.75 × 47,898.80 - Step 4: Simplify right side
86,135.44x = 5,694,053,672.90 - Step 5: Solve for x
x = 5,694,053,672.90/86,135.44 - Step 6: Final answer
x = 66,105.82
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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.