Finding the Fourth Proportional to 79,788.26, 110,114.38 and 43,985.28
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Solution
The fourth proportional to 79,788.26, 110,114.38 and 43,985.28 is: 60,703.31
Step by Step Solution
- Step 1: Write the proportion equation
79,788.26 : 110,114.38 = 43,985.28 : x - Step 2: Convert to fraction form
79,788.26/110,114.38 = 43,985.28/x - Step 3: Cross multiply
79,788.26x = 110,114.38 × 43,985.28 - Step 4: Simplify right side
79,788.26x = 4,843,411,836.33 - Step 5: Solve for x
x = 4,843,411,836.33/79,788.26 - Step 6: Final answer
x = 60,703.31
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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.