Finding the Fourth Proportional to 77,068.74, 115,589.73 and 27,137.10
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Solution
The fourth proportional to 77,068.74, 115,589.73 and 27,137.10 is: 40,700.94
Step by Step Solution
- Step 1: Write the proportion equation
77,068.74 : 115,589.73 = 27,137.10 : x - Step 2: Convert to fraction form
77,068.74/115,589.73 = 27,137.10/x - Step 3: Cross multiply
77,068.74x = 115,589.73 × 27,137.10 - Step 4: Simplify right side
77,068.74x = 3,136,770,061.98 - Step 5: Solve for x
x = 3,136,770,061.98/77,068.74 - Step 6: Final answer
x = 40,700.94
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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.