Finding the Fourth Proportional to 84,753.39, 126,972.79 and 60,688.02
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Solution
The fourth proportional to 84,753.39, 126,972.79 and 60,688.02 is: 90,919.40
Step by Step Solution
- Step 1: Write the proportion equation
84,753.39 : 126,972.79 = 60,688.02 : x - Step 2: Convert to fraction form
84,753.39/126,972.79 = 60,688.02/x - Step 3: Cross multiply
84,753.39x = 126,972.79 × 60,688.02 - Step 4: Simplify right side
84,753.39x = 7,705,727,218.98 - Step 5: Solve for x
x = 7,705,727,218.98/84,753.39 - Step 6: Final answer
x = 90,919.40
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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.