Finding the Fourth Proportional to 77,137.80, 115,715.21 and 24,534.99
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Solution
The fourth proportional to 77,137.80, 115,715.21 and 24,534.99 is: 36,805.19
Step by Step Solution
- Step 1: Write the proportion equation
77,137.80 : 115,715.21 = 24,534.99 : x - Step 2: Convert to fraction form
77,137.80/115,715.21 = 24,534.99/x - Step 3: Cross multiply
77,137.80x = 115,715.21 × 24,534.99 - Step 4: Simplify right side
77,137.80x = 2,839,071,397.52 - Step 5: Solve for x
x = 2,839,071,397.52/77,137.80 - Step 6: Final answer
x = 36,805.19
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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.