Finding the Fourth Proportional to 82,628.55, 113,985.42 and 53,964.99
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Solution
The fourth proportional to 82,628.55, 113,985.42 and 53,964.99 is: 74,444.27
Step by Step Solution
- Step 1: Write the proportion equation
82,628.55 : 113,985.42 = 53,964.99 : x - Step 2: Convert to fraction form
82,628.55/113,985.42 = 53,964.99/x - Step 3: Cross multiply
82,628.55x = 113,985.42 × 53,964.99 - Step 4: Simplify right side
82,628.55x = 6,151,222,050.45 - Step 5: Solve for x
x = 6,151,222,050.45/82,628.55 - Step 6: Final answer
x = 74,444.27
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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.