Finding the Fourth Proportional to 82,436.85, 113,726.75 and 48,429.99
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Solution
The fourth proportional to 82,436.85, 113,726.75 and 48,429.99 is: 66,812.17
Step by Step Solution
- Step 1: Write the proportion equation
82,436.85 : 113,726.75 = 48,429.99 : x - Step 2: Convert to fraction form
82,436.85/113,726.75 = 48,429.99/x - Step 3: Cross multiply
82,436.85x = 113,726.75 × 48,429.99 - Step 4: Simplify right side
82,436.85x = 5,507,785,123.08 - Step 5: Solve for x
x = 5,507,785,123.08/82,436.85 - Step 6: Final answer
x = 66,812.17
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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.