Finding the Fourth Proportional to 87,800.19, 121,156.61 and 51,508.95
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Solution
The fourth proportional to 87,800.19, 121,156.61 and 51,508.95 is: 71,077.86
Step by Step Solution
- Step 1: Write the proportion equation
87,800.19 : 121,156.61 = 51,508.95 : x - Step 2: Convert to fraction form
87,800.19/121,156.61 = 51,508.95/x - Step 3: Cross multiply
87,800.19x = 121,156.61 × 51,508.95 - Step 4: Simplify right side
87,800.19x = 6,240,649,766.66 - Step 5: Solve for x
x = 6,240,649,766.66/87,800.19 - Step 6: Final answer
x = 71,077.86
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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.