Finding the Fourth Proportional to 87,711.58, 121,041.98 and 47,425.33
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Solution
The fourth proportional to 87,711.58, 121,041.98 and 47,425.33 is: 65,446.95
Step by Step Solution
- Step 1: Write the proportion equation
87,711.58 : 121,041.98 = 47,425.33 : x - Step 2: Convert to fraction form
87,711.58/121,041.98 = 47,425.33/x - Step 3: Cross multiply
87,711.58x = 121,041.98 × 47,425.33 - Step 4: Simplify right side
87,711.58x = 5,740,455,608.23 - Step 5: Solve for x
x = 5,740,455,608.23/87,711.58 - Step 6: Final answer
x = 65,446.95
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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.