Finding the Fourth Proportional to 86,293.28, 129,267.60 and 68,553.98
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Solution
The fourth proportional to 86,293.28, 129,267.60 and 68,553.98 is: 102,694.07
Step by Step Solution
- Step 1: Write the proportion equation
86,293.28 : 129,267.60 = 68,553.98 : x - Step 2: Convert to fraction form
86,293.28/129,267.60 = 68,553.98/x - Step 3: Cross multiply
86,293.28x = 129,267.60 × 68,553.98 - Step 4: Simplify right side
86,293.28x = 8,861,808,465.05 - Step 5: Solve for x
x = 8,861,808,465.05/86,293.28 - Step 6: Final answer
x = 102,694.07
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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.