Finding the Fourth Proportional to 90,749.44, 125,234.08 and 50,461.92
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Solution
The fourth proportional to 90,749.44, 125,234.08 and 50,461.92 is: 69,637.37
Step by Step Solution
- Step 1: Write the proportion equation
90,749.44 : 125,234.08 = 50,461.92 : x - Step 2: Convert to fraction form
90,749.44/125,234.08 = 50,461.92/x - Step 3: Cross multiply
90,749.44x = 125,234.08 × 50,461.92 - Step 4: Simplify right side
90,749.44x = 6,319,552,126.23 - Step 5: Solve for x
x = 6,319,552,126.23/90,749.44 - Step 6: Final answer
x = 69,637.37
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1.5x scale
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.