Finding the Fourth Proportional to 87,139.80, 130,676.49 and 37,242.99
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Solution
The fourth proportional to 87,139.80, 130,676.49 and 37,242.99 is: 55,850.29
Step by Step Solution
- Step 1: Write the proportion equation
87,139.80 : 130,676.49 = 37,242.99 : x - Step 2: Convert to fraction form
87,139.80/130,676.49 = 37,242.99/x - Step 3: Cross multiply
87,139.80x = 130,676.49 × 37,242.99 - Step 4: Simplify right side
87,139.80x = 4,866,783,210.31 - Step 5: Solve for x
x = 4,866,783,210.31/87,139.80 - Step 6: Final answer
x = 55,850.29
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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.