Finding the Fourth Proportional to 84,402.36, 126,628.92 and 25,239.96
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Solution
The fourth proportional to 84,402.36, 126,628.92 and 25,239.96 is: 37,867.53
Step by Step Solution
- Step 1: Write the proportion equation
84,402.36 : 126,628.92 = 25,239.96 : x - Step 2: Convert to fraction form
84,402.36/126,628.92 = 25,239.96/x - Step 3: Cross multiply
84,402.36x = 126,628.92 × 25,239.96 - Step 4: Simplify right side
84,402.36x = 3,196,108,875.64 - Step 5: Solve for x
x = 3,196,108,875.64/84,402.36 - Step 6: Final answer
x = 37,867.53
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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.