Finding the Fourth Proportional to 90,604.08, 125,029.92 and 50,319.60
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Solution
The fourth proportional to 90,604.08, 125,029.92 and 50,319.60 is: 69,438.99
Step by Step Solution
- Step 1: Write the proportion equation
90,604.08 : 125,029.92 = 50,319.60 : x - Step 2: Convert to fraction form
90,604.08/125,029.92 = 50,319.60/x - Step 3: Cross multiply
90,604.08x = 125,029.92 × 50,319.60 - Step 4: Simplify right side
90,604.08x = 6,291,455,562.43 - Step 5: Solve for x
x = 6,291,455,562.43/90,604.08 - Step 6: Final answer
x = 69,438.99
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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.