Finding the Fourth Proportional to 77,236.37, 115,714.68 and 64,836.08
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Solution
The fourth proportional to 77,236.37, 115,714.68 and 64,836.08 is: 97,136.70
Step by Step Solution
- Step 1: Write the proportion equation
77,236.37 : 115,714.68 = 64,836.08 : x - Step 2: Convert to fraction form
77,236.37/115,714.68 = 64,836.08/x - Step 3: Cross multiply
77,236.37x = 115,714.68 × 64,836.08 - Step 4: Simplify right side
77,236.37x = 7,502,485,861.88 - Step 5: Solve for x
x = 7,502,485,861.88/77,236.37 - Step 6: Final answer
x = 97,136.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.