Finding the Fourth Proportional to 90,648.72, 125,091.68 and 50,364.99
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Solution
The fourth proportional to 90,648.72, 125,091.68 and 50,364.99 is: 69,501.71
Step by Step Solution
- Step 1: Write the proportion equation
90,648.72 : 125,091.68 = 50,364.99 : x - Step 2: Convert to fraction form
90,648.72/125,091.68 = 50,364.99/x - Step 3: Cross multiply
90,648.72x = 125,091.68 × 50,364.99 - Step 4: Simplify right side
90,648.72x = 6,300,240,960.46 - Step 5: Solve for x
x = 6,300,240,960.46/90,648.72 - Step 6: Final answer
x = 69,501.71
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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.