Finding the Fourth Proportional to 90,680.36, 125,141.94 and 50,395.82
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Solution
The fourth proportional to 90,680.36, 125,141.94 and 50,395.82 is: 69,547.92
Step by Step Solution
- Step 1: Write the proportion equation
90,680.36 : 125,141.94 = 50,395.82 : x - Step 2: Convert to fraction form
90,680.36/125,141.94 = 50,395.82/x - Step 3: Cross multiply
90,680.36x = 125,141.94 × 50,395.82 - Step 4: Simplify right side
90,680.36x = 6,306,630,056.98 - Step 5: Solve for x
x = 6,306,630,056.98/90,680.36 - Step 6: Final answer
x = 69,547.92
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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.