Finding the Fourth Proportional to 90,144.68, 124,394.77 and 49,856.09
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Solution
The fourth proportional to 90,144.68, 124,394.77 and 49,856.09 is: 68,798.70
Step by Step Solution
- Step 1: Write the proportion equation
90,144.68 : 124,394.77 = 49,856.09 : x - Step 2: Convert to fraction form
90,144.68/124,394.77 = 49,856.09/x - Step 3: Cross multiply
90,144.68x = 124,394.77 × 49,856.09 - Step 4: Simplify right side
90,144.68x = 6,201,836,848.65 - Step 5: Solve for x
x = 6,201,836,848.65/90,144.68 - Step 6: Final answer
x = 68,798.70
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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.