Finding the Fourth Proportional to 87,828.08, 131,763.08 and 28,663.84
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Solution
The fourth proportional to 87,828.08, 131,763.08 and 28,663.84 is: 43,002.60
Step by Step Solution
- Step 1: Write the proportion equation
87,828.08 : 131,763.08 = 28,663.84 : x - Step 2: Convert to fraction form
87,828.08/131,763.08 = 28,663.84/x - Step 3: Cross multiply
87,828.08x = 131,763.08 × 28,663.84 - Step 4: Simplify right side
87,828.08x = 3,776,835,843.03 - Step 5: Solve for x
x = 3,776,835,843.03/87,828.08 - Step 6: Final answer
x = 43,002.60
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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.