Finding the Fourth Proportional to 87,859.88, 121,246.86 and 47,574.14
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Solution
The fourth proportional to 87,859.88, 121,246.86 and 47,574.14 is: 65,652.44
Step by Step Solution
- Step 1: Write the proportion equation
87,859.88 : 121,246.86 = 47,574.14 : x - Step 2: Convert to fraction form
87,859.88/121,246.86 = 47,574.14/x - Step 3: Cross multiply
87,859.88x = 121,246.86 × 47,574.14 - Step 4: Simplify right side
87,859.88x = 5,768,215,092.20 - Step 5: Solve for x
x = 5,768,215,092.20/87,859.88 - Step 6: Final answer
x = 65,652.44
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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.