Finding the Fourth Proportional to 67,643.70, 101,465.55 and 48,981.30
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Solution
The fourth proportional to 67,643.70, 101,465.55 and 48,981.30 is: 73,471.95
Step by Step Solution
- Step 1: Write the proportion equation
67,643.70 : 101,465.55 = 48,981.30 : x - Step 2: Convert to fraction form
67,643.70/101,465.55 = 48,981.30/x - Step 3: Cross multiply
67,643.70x = 101,465.55 × 48,981.30 - Step 4: Simplify right side
67,643.70x = 4,969,914,544.22 - Step 5: Solve for x
x = 4,969,914,544.22/67,643.70 - Step 6: Final answer
x = 73,471.95
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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.