Finding the Fourth Proportional to 70,812.28, 106,236.87 and 26,439.40
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Solution
The fourth proportional to 70,812.28, 106,236.87 and 26,439.40 is: 39,665.99
Step by Step Solution
- Step 1: Write the proportion equation
70,812.28 : 106,236.87 = 26,439.40 : x - Step 2: Convert to fraction form
70,812.28/106,236.87 = 26,439.40/x - Step 3: Cross multiply
70,812.28x = 106,236.87 × 26,439.40 - Step 4: Simplify right side
70,812.28x = 2,808,839,100.68 - Step 5: Solve for x
x = 2,808,839,100.68/70,812.28 - Step 6: Final answer
x = 39,665.99
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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.