Finding the Fourth Proportional to 87,133.68, 130,688.17 and 27,961.70
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Solution
The fourth proportional to 87,133.68, 130,688.17 and 27,961.70 is: 41,938.58
Step by Step Solution
- Step 1: Write the proportion equation
87,133.68 : 130,688.17 = 27,961.70 : x - Step 2: Convert to fraction form
87,133.68/130,688.17 = 27,961.70/x - Step 3: Cross multiply
87,133.68x = 130,688.17 × 27,961.70 - Step 4: Simplify right side
87,133.68x = 3,654,262,679.74 - Step 5: Solve for x
x = 3,654,262,679.74/87,133.68 - Step 6: Final answer
x = 41,938.58
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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.