Finding the Fourth Proportional to 80,966.36, 121,463.38 and 27,655.41
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Solution
The fourth proportional to 80,966.36, 121,463.38 and 27,655.41 is: 41,487.84
Step by Step Solution
- Step 1: Write the proportion equation
80,966.36 : 121,463.38 = 27,655.41 : x - Step 2: Convert to fraction form
80,966.36/121,463.38 = 27,655.41/x - Step 3: Cross multiply
80,966.36x = 121,463.38 × 27,655.41 - Step 4: Simplify right side
80,966.36x = 3,359,118,997.41 - Step 5: Solve for x
x = 3,359,118,997.41/80,966.36 - Step 6: Final answer
x = 41,487.84
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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.