Finding the Fourth Proportional to 83,604.76, 125,403.74 and 21,276.84
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Solution
The fourth proportional to 83,604.76, 125,403.74 and 21,276.84 is: 31,914.39
Step by Step Solution
- Step 1: Write the proportion equation
83,604.76 : 125,403.74 = 21,276.84 : x - Step 2: Convert to fraction form
83,604.76/125,403.74 = 21,276.84/x - Step 3: Cross multiply
83,604.76x = 125,403.74 × 21,276.84 - Step 4: Simplify right side
83,604.76x = 2,668,195,311.38 - Step 5: Solve for x
x = 2,668,195,311.38/83,604.76 - Step 6: Final answer
x = 31,914.39
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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.