Finding the Fourth Proportional to 77,037.26, 115,396.70 and 45,349.67
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Solution
The fourth proportional to 77,037.26, 115,396.70 and 45,349.67 is: 67,930.80
Step by Step Solution
- Step 1: Write the proportion equation
77,037.26 : 115,396.70 = 45,349.67 : x - Step 2: Convert to fraction form
77,037.26/115,396.70 = 45,349.67/x - Step 3: Cross multiply
77,037.26x = 115,396.70 × 45,349.67 - Step 4: Simplify right side
77,037.26x = 5,233,202,325.83 - Step 5: Solve for x
x = 5,233,202,325.83/77,037.26 - Step 6: Final answer
x = 67,930.80
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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.