Finding the Fourth Proportional to 79,039.14, 109,065.69 and 47,203.62
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Solution
The fourth proportional to 79,039.14, 109,065.69 and 47,203.62 is: 65,136.02
Step by Step Solution
- Step 1: Write the proportion equation
79,039.14 : 109,065.69 = 47,203.62 : x - Step 2: Convert to fraction form
79,039.14/109,065.69 = 47,203.62/x - Step 3: Cross multiply
79,039.14x = 109,065.69 × 47,203.62 - Step 4: Simplify right side
79,039.14x = 5,148,295,385.80 - Step 5: Solve for x
x = 5,148,295,385.80/79,039.14 - Step 6: Final answer
x = 65,136.02
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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.