Finding the Fourth Proportional to 77,266.20, 115,843.95 and 29,840.70
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Solution
The fourth proportional to 77,266.20, 115,843.95 and 29,840.70 is: 44,739.67
Step by Step Solution
- Step 1: Write the proportion equation
77,266.20 : 115,843.95 = 29,840.70 : x - Step 2: Convert to fraction form
77,266.20/115,843.95 = 29,840.70/x - Step 3: Cross multiply
77,266.20x = 115,843.95 × 29,840.70 - Step 4: Simplify right side
77,266.20x = 3,456,864,558.77 - Step 5: Solve for x
x = 3,456,864,558.77/77,266.20 - Step 6: Final answer
x = 44,739.67
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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.