Finding the Fourth Proportional to 87,893.29, 131,859.51 and 48,430.09
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Solution
The fourth proportional to 87,893.29, 131,859.51 and 48,430.09 is: 72,655.92
Step by Step Solution
- Step 1: Write the proportion equation
87,893.29 : 131,859.51 = 48,430.09 : x - Step 2: Convert to fraction form
87,893.29/131,859.51 = 48,430.09/x - Step 3: Cross multiply
87,893.29x = 131,859.51 × 48,430.09 - Step 4: Simplify right side
87,893.29x = 6,385,967,936.66 - Step 5: Solve for x
x = 6,385,967,936.66/87,893.29 - Step 6: Final answer
x = 72,655.92
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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.