Finding the Fourth Proportional to 71,232.81, 106,816.40 and 40,068.06
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Solution
The fourth proportional to 71,232.81, 106,816.40 and 40,068.06 is: 60,083.63
Step by Step Solution
- Step 1: Write the proportion equation
71,232.81 : 106,816.40 = 40,068.06 : x - Step 2: Convert to fraction form
71,232.81/106,816.40 = 40,068.06/x - Step 3: Cross multiply
71,232.81x = 106,816.40 × 40,068.06 - Step 4: Simplify right side
71,232.81x = 4,279,925,924.18 - Step 5: Solve for x
x = 4,279,925,924.18/71,232.81 - Step 6: Final answer
x = 60,083.63
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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.