Finding the Fourth Proportional to 87,682.68, 121,042.35 and 51,379.07
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Solution
The fourth proportional to 87,682.68, 121,042.35 and 51,379.07 is: 70,926.70
Step by Step Solution
- Step 1: Write the proportion equation
87,682.68 : 121,042.35 = 51,379.07 : x - Step 2: Convert to fraction form
87,682.68/121,042.35 = 51,379.07/x - Step 3: Cross multiply
87,682.68x = 121,042.35 × 51,379.07 - Step 4: Simplify right side
87,682.68x = 6,219,042,768.40 - Step 5: Solve for x
x = 6,219,042,768.40/87,682.68 - Step 6: Final answer
x = 70,926.70
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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.