Finding the Fourth Proportional to 78,745.46, 118,051.29 and 36,649.99
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Solution
The fourth proportional to 78,745.46, 118,051.29 and 36,649.99 is: 54,943.85
Step by Step Solution
- Step 1: Write the proportion equation
78,745.46 : 118,051.29 = 36,649.99 : x - Step 2: Convert to fraction form
78,745.46/118,051.29 = 36,649.99/x - Step 3: Cross multiply
78,745.46x = 118,051.29 × 36,649.99 - Step 4: Simplify right side
78,745.46x = 4,326,578,597.99 - Step 5: Solve for x
x = 4,326,578,597.99/78,745.46 - Step 6: Final answer
x = 54,943.85
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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.