Finding the Fourth Proportional to 84,381.29, 126,341.37 and 60,712.49
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Solution
The fourth proportional to 84,381.29, 126,341.37 and 60,712.49 is: 90,902.84
Step by Step Solution
- Step 1: Write the proportion equation
84,381.29 : 126,341.37 = 60,712.49 : x - Step 2: Convert to fraction form
84,381.29/126,341.37 = 60,712.49/x - Step 3: Cross multiply
84,381.29x = 126,341.37 × 60,712.49 - Step 4: Simplify right side
84,381.29x = 7,670,499,162.71 - Step 5: Solve for x
x = 7,670,499,162.71/84,381.29 - Step 6: Final answer
x = 90,902.84
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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.