Finding the Fourth Proportional to 87,178.01, 130,642.14 and 49,660.62
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Solution
The fourth proportional to 87,178.01, 130,642.14 and 49,660.62 is: 74,419.80
Step by Step Solution
- Step 1: Write the proportion equation
87,178.01 : 130,642.14 = 49,660.62 : x - Step 2: Convert to fraction form
87,178.01/130,642.14 = 49,660.62/x - Step 3: Cross multiply
87,178.01x = 130,642.14 × 49,660.62 - Step 4: Simplify right side
87,178.01x = 6,487,770,329.47 - Step 5: Solve for x
x = 6,487,770,329.47/87,178.01 - Step 6: Final answer
x = 74,419.80
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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.