Finding the Fourth Proportional to 90,619.43, 125,051.36 and 50,335.79
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Solution
The fourth proportional to 90,619.43, 125,051.36 and 50,335.79 is: 69,461.47
Step by Step Solution
- Step 1: Write the proportion equation
90,619.43 : 125,051.36 = 50,335.79 : x - Step 2: Convert to fraction form
90,619.43/125,051.36 = 50,335.79/x - Step 3: Cross multiply
90,619.43x = 125,051.36 × 50,335.79 - Step 4: Simplify right side
90,619.43x = 6,294,558,119.24 - Step 5: Solve for x
x = 6,294,558,119.24/90,619.43 - Step 6: Final answer
x = 69,461.47
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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.