Finding the Fourth Proportional to 77,107.84, 106,415.68 and 48,447.36
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Solution
The fourth proportional to 77,107.84, 106,415.68 and 48,447.36 is: 66,861.67
Step by Step Solution
- Step 1: Write the proportion equation
77,107.84 : 106,415.68 = 48,447.36 : x - Step 2: Convert to fraction form
77,107.84/106,415.68 = 48,447.36/x - Step 3: Cross multiply
77,107.84x = 106,415.68 × 48,447.36 - Step 4: Simplify right side
77,107.84x = 5,155,558,758.60 - Step 5: Solve for x
x = 5,155,558,758.60/77,107.84 - Step 6: Final answer
x = 66,861.67
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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.