Finding the Fourth Proportional to 84,515.81, 126,837.48 and 57,797.96
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Solution
The fourth proportional to 84,515.81, 126,837.48 and 57,797.96 is: 86,740.55
Step by Step Solution
- Step 1: Write the proportion equation
84,515.81 : 126,837.48 = 57,797.96 : x - Step 2: Convert to fraction form
84,515.81/126,837.48 = 57,797.96/x - Step 3: Cross multiply
84,515.81x = 126,837.48 × 57,797.96 - Step 4: Simplify right side
84,515.81x = 7,330,947,595.54 - Step 5: Solve for x
x = 7,330,947,595.54/84,515.81 - Step 6: Final answer
x = 86,740.55
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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.