Finding the Fourth Proportional to 76,778.82, 115,113.69 and 29,353.95
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Solution
The fourth proportional to 76,778.82, 115,113.69 and 29,353.95 is: 44,010.07
Step by Step Solution
- Step 1: Write the proportion equation
76,778.82 : 115,113.69 = 29,353.95 : x - Step 2: Convert to fraction form
76,778.82/115,113.69 = 29,353.95/x - Step 3: Cross multiply
76,778.82x = 115,113.69 × 29,353.95 - Step 4: Simplify right side
76,778.82x = 3,379,041,500.58 - Step 5: Solve for x
x = 3,379,041,500.58/76,778.82 - Step 6: Final answer
x = 44,010.07
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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.