Finding the Fourth Proportional to 83,649.66, 115,445.71 and 47,843.02
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Solution
The fourth proportional to 83,649.66, 115,445.71 and 47,843.02 is: 66,028.62
Step by Step Solution
- Step 1: Write the proportion equation
83,649.66 : 115,445.71 = 47,843.02 : x - Step 2: Convert to fraction form
83,649.66/115,445.71 = 47,843.02/x - Step 3: Cross multiply
83,649.66x = 115,445.71 × 47,843.02 - Step 4: Simplify right side
83,649.66x = 5,523,271,412.44 - Step 5: Solve for x
x = 5,523,271,412.44/83,649.66 - Step 6: Final answer
x = 66,028.62
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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.