Finding the Fourth Proportional to 89,340.09, 134,057.16 and 39,454.62
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Solution
The fourth proportional to 89,340.09, 134,057.16 and 39,454.62 is: 59,202.70
Step by Step Solution
- Step 1: Write the proportion equation
89,340.09 : 134,057.16 = 39,454.62 : x - Step 2: Convert to fraction form
89,340.09/134,057.16 = 39,454.62/x - Step 3: Cross multiply
89,340.09x = 134,057.16 × 39,454.62 - Step 4: Simplify right side
89,340.09x = 5,289,174,306.08 - Step 5: Solve for x
x = 5,289,174,306.08/89,340.09 - Step 6: Final answer
x = 59,202.70
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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.