Finding the Fourth Proportional to 76,628.80, 114,899.84 and 29,827.84
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Solution
The fourth proportional to 76,628.80, 114,899.84 and 29,827.84 is: 44,724.88
Step by Step Solution
- Step 1: Write the proportion equation
76,628.80 : 114,899.84 = 29,827.84 : x - Step 2: Convert to fraction form
76,628.80/114,899.84 = 29,827.84/x - Step 3: Cross multiply
76,628.80x = 114,899.84 × 29,827.84 - Step 4: Simplify right side
76,628.80x = 3,427,214,043.55 - Step 5: Solve for x
x = 3,427,214,043.55/76,628.80 - Step 6: Final answer
x = 44,724.88
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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.