Finding the Fourth Proportional to 87,243.08, 130,860.97 and 28,077.44
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Solution
The fourth proportional to 87,243.08, 130,860.97 and 28,077.44 is: 42,114.98
Step by Step Solution
- Step 1: Write the proportion equation
87,243.08 : 130,860.97 = 28,077.44 : x - Step 2: Convert to fraction form
87,243.08/130,860.97 = 28,077.44/x - Step 3: Cross multiply
87,243.08x = 130,860.97 × 28,077.44 - Step 4: Simplify right side
87,243.08x = 3,674,240,309.02 - Step 5: Solve for x
x = 3,674,240,309.02/87,243.08 - Step 6: Final answer
x = 42,114.98
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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.