Finding the Fourth Proportional to 86,816.66, 129,869.73 and 65,598.98
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Solution
The fourth proportional to 86,816.66, 129,869.73 and 65,598.98 is: 98,130.03
Step by Step Solution
- Step 1: Write the proportion equation
86,816.66 : 129,869.73 = 65,598.98 : x - Step 2: Convert to fraction form
86,816.66/129,869.73 = 65,598.98/x - Step 3: Cross multiply
86,816.66x = 129,869.73 × 65,598.98 - Step 4: Simplify right side
86,816.66x = 8,519,321,902.04 - Step 5: Solve for x
x = 8,519,321,902.04/86,816.66 - Step 6: Final answer
x = 98,130.03
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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.