Finding the Fourth Proportional to 82,219.36, 113,344.12 and 53,875.84
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Solution
The fourth proportional to 82,219.36, 113,344.12 and 53,875.84 is: 74,270.95
Step by Step Solution
- Step 1: Write the proportion equation
82,219.36 : 113,344.12 = 53,875.84 : x - Step 2: Convert to fraction form
82,219.36/113,344.12 = 53,875.84/x - Step 3: Cross multiply
82,219.36x = 113,344.12 × 53,875.84 - Step 4: Simplify right side
82,219.36x = 6,106,509,674.06 - Step 5: Solve for x
x = 6,106,509,674.06/82,219.36 - Step 6: Final answer
x = 74,270.95
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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.