Finding the Fourth Proportional to 84,455.35, 126,720.11 and 31,852.54
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Solution
The fourth proportional to 84,455.35, 126,720.11 and 31,852.54 is: 47,792.80
Step by Step Solution
- Step 1: Write the proportion equation
84,455.35 : 126,720.11 = 31,852.54 : x - Step 2: Convert to fraction form
84,455.35/126,720.11 = 31,852.54/x - Step 3: Cross multiply
84,455.35x = 126,720.11 × 31,852.54 - Step 4: Simplify right side
84,455.35x = 4,036,357,372.58 - Step 5: Solve for x
x = 4,036,357,372.58/84,455.35 - Step 6: Final answer
x = 47,792.80
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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.