Finding the Fourth Proportional to 80,864.34, 121,319.91 and 33,470.67
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Solution
The fourth proportional to 80,864.34, 121,319.91 and 33,470.67 is: 50,215.69
Step by Step Solution
- Step 1: Write the proportion equation
80,864.34 : 121,319.91 = 33,470.67 : x - Step 2: Convert to fraction form
80,864.34/121,319.91 = 33,470.67/x - Step 3: Cross multiply
80,864.34x = 121,319.91 × 33,470.67 - Step 4: Simplify right side
80,864.34x = 4,060,658,672.04 - Step 5: Solve for x
x = 4,060,658,672.04/80,864.34 - Step 6: Final answer
x = 50,215.69
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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.