Finding the Fourth Proportional to 94,778.69, 142,158.28 and 31,591.99
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Solution
The fourth proportional to 94,778.69, 142,158.28 and 31,591.99 is: 47,384.73
Step by Step Solution
- Step 1: Write the proportion equation
94,778.69 : 142,158.28 = 31,591.99 : x - Step 2: Convert to fraction form
94,778.69/142,158.28 = 31,591.99/x - Step 3: Cross multiply
94,778.69x = 142,158.28 × 31,591.99 - Step 4: Simplify right side
94,778.69x = 4,491,062,960.18 - Step 5: Solve for x
x = 4,491,062,960.18/94,778.69 - Step 6: Final answer
x = 47,384.73
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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.