Finding the Fourth Proportional to 92,378.52, 138,789.72 and 59,163.12
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Solution
The fourth proportional to 92,378.52, 138,789.72 and 59,163.12 is: 88,886.82
Step by Step Solution
- Step 1: Write the proportion equation
92,378.52 : 138,789.72 = 59,163.12 : x - Step 2: Convert to fraction form
92,378.52/138,789.72 = 59,163.12/x - Step 3: Cross multiply
92,378.52x = 138,789.72 × 59,163.12 - Step 4: Simplify right side
92,378.52x = 8,211,232,859.13 - Step 5: Solve for x
x = 8,211,232,859.13/92,378.52 - Step 6: Final answer
x = 88,886.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.