Finding the Fourth Proportional to 81,982.55, 113,132.97 and 46,175.90
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Solution
The fourth proportional to 81,982.55, 113,132.97 and 46,175.90 is: 63,721.07
Step by Step Solution
- Step 1: Write the proportion equation
81,982.55 : 113,132.97 = 46,175.90 : x - Step 2: Convert to fraction form
81,982.55/113,132.97 = 46,175.90/x - Step 3: Cross multiply
81,982.55x = 113,132.97 × 46,175.90 - Step 4: Simplify right side
81,982.55x = 5,224,016,143.76 - Step 5: Solve for x
x = 5,224,016,143.76/81,982.55 - Step 6: Final answer
x = 63,721.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.