Finding the Fourth Proportional to 67,983.62, 101,989.87 and 28,517.99
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Solution
The fourth proportional to 67,983.62, 101,989.87 and 28,517.99 is: 42,783.04
Step by Step Solution
- Step 1: Write the proportion equation
67,983.62 : 101,989.87 = 28,517.99 : x - Step 2: Convert to fraction form
67,983.62/101,989.87 = 28,517.99/x - Step 3: Cross multiply
67,983.62x = 101,989.87 × 28,517.99 - Step 4: Simplify right side
67,983.62x = 2,908,545,511.52 - Step 5: Solve for x
x = 2,908,545,511.52/67,983.62 - Step 6: Final answer
x = 42,783.04
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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.