Finding the Fourth Proportional to 81,107.44, 121,666.02 and 38,996.08
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Solution
The fourth proportional to 81,107.44, 121,666.02 and 38,996.08 is: 58,496.46
Step by Step Solution
- Step 1: Write the proportion equation
81,107.44 : 121,666.02 = 38,996.08 : x - Step 2: Convert to fraction form
81,107.44/121,666.02 = 38,996.08/x - Step 3: Cross multiply
81,107.44x = 121,666.02 × 38,996.08 - Step 4: Simplify right side
81,107.44x = 4,744,497,849.20 - Step 5: Solve for x
x = 4,744,497,849.20/81,107.44 - Step 6: Final answer
x = 58,496.46
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1.5x scale
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.