Finding the Fourth Proportional to 71,977.13, 107,965.70 and 36,894.41
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Solution
The fourth proportional to 71,977.13, 107,965.70 and 36,894.41 is: 55,341.62
Step by Step Solution
- Step 1: Write the proportion equation
71,977.13 : 107,965.70 = 36,894.41 : x - Step 2: Convert to fraction form
71,977.13/107,965.70 = 36,894.41/x - Step 3: Cross multiply
71,977.13x = 107,965.70 × 36,894.41 - Step 4: Simplify right side
71,977.13x = 3,983,330,801.74 - Step 5: Solve for x
x = 3,983,330,801.74/71,977.13 - Step 6: Final answer
x = 55,341.62
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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.