Finding the Fourth Proportional to 83,816.98, 115,639.12 and 47,514.53
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Solution
The fourth proportional to 83,816.98, 115,639.12 and 47,514.53 is: 65,554.00
Step by Step Solution
- Step 1: Write the proportion equation
83,816.98 : 115,639.12 = 47,514.53 : x - Step 2: Convert to fraction form
83,816.98/115,639.12 = 47,514.53/x - Step 3: Cross multiply
83,816.98x = 115,639.12 × 47,514.53 - Step 4: Simplify right side
83,816.98x = 5,494,538,557.68 - Step 5: Solve for x
x = 5,494,538,557.68/83,816.98 - Step 6: Final answer
x = 65,554.00
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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.