Finding the Fourth Proportional to 90,609.21, 125,041.50 and 50,323.68
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Solution
The fourth proportional to 90,609.21, 125,041.50 and 50,323.68 is: 69,447.12
Step by Step Solution
- Step 1: Write the proportion equation
90,609.21 : 125,041.50 = 50,323.68 : x - Step 2: Convert to fraction form
90,609.21/125,041.50 = 50,323.68/x - Step 3: Cross multiply
90,609.21x = 125,041.50 × 50,323.68 - Step 4: Simplify right side
90,609.21x = 6,292,548,432.72 - Step 5: Solve for x
x = 6,292,548,432.72/90,609.21 - Step 6: Final answer
x = 69,447.12
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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.