Finding the Fourth Proportional to 87,723.96, 121,051.72 and 51,907.70
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Solution
The fourth proportional to 87,723.96, 121,051.72 and 51,907.70 is: 71,628.28
Step by Step Solution
- Step 1: Write the proportion equation
87,723.96 : 121,051.72 = 51,907.70 : x - Step 2: Convert to fraction form
87,723.96/121,051.72 = 51,907.70/x - Step 3: Cross multiply
87,723.96x = 121,051.72 × 51,907.70 - Step 4: Simplify right side
87,723.96x = 6,283,516,366.24 - Step 5: Solve for x
x = 6,283,516,366.24/87,723.96 - Step 6: Final answer
x = 71,628.28
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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.