Finding the Fourth Proportional to 87,893.40, 121,292.84 and 47,607.95
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Solution
The fourth proportional to 87,893.40, 121,292.84 and 47,607.95 is: 65,698.94
Step by Step Solution
- Step 1: Write the proportion equation
87,893.40 : 121,292.84 = 47,607.95 : x - Step 2: Convert to fraction form
87,893.40/121,292.84 = 47,607.95/x - Step 3: Cross multiply
87,893.40x = 121,292.84 × 47,607.95 - Step 4: Simplify right side
87,893.40x = 5,774,503,884.33 - Step 5: Solve for x
x = 5,774,503,884.33/87,893.40 - Step 6: Final answer
x = 65,698.94
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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.