Finding the Fourth Proportional to 87,020.97, 130,543.97 and 33,005.53
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Solution
The fourth proportional to 87,020.97, 130,543.97 and 33,005.53 is: 49,513.03
Step by Step Solution
- Step 1: Write the proportion equation
87,020.97 : 130,543.97 = 33,005.53 : x - Step 2: Convert to fraction form
87,020.97/130,543.97 = 33,005.53/x - Step 3: Cross multiply
87,020.97x = 130,543.97 × 33,005.53 - Step 4: Simplify right side
87,020.97x = 4,308,672,228.41 - Step 5: Solve for x
x = 4,308,672,228.41/87,020.97 - Step 6: Final answer
x = 49,513.03
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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.