Finding the Fourth Proportional to 90,698.73, 125,163.50 and 49,305.45
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Solution
The fourth proportional to 90,698.73, 125,163.50 and 49,305.45 is: 68,041.12
Step by Step Solution
- Step 1: Write the proportion equation
90,698.73 : 125,163.50 = 49,305.45 : x - Step 2: Convert to fraction form
90,698.73/125,163.50 = 49,305.45/x - Step 3: Cross multiply
90,698.73x = 125,163.50 × 49,305.45 - Step 4: Simplify right side
90,698.73x = 6,171,242,814.34 - Step 5: Solve for x
x = 6,171,242,814.34/90,698.73 - Step 6: Final answer
x = 68,041.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.