Finding the Fourth Proportional to 92,427.18, 138,650.49 and 30,102.54
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Solution
The fourth proportional to 92,427.18, 138,650.49 and 30,102.54 is: 45,156.98
Step by Step Solution
- Step 1: Write the proportion equation
92,427.18 : 138,650.49 = 30,102.54 : x - Step 2: Convert to fraction form
92,427.18/138,650.49 = 30,102.54/x - Step 3: Cross multiply
92,427.18x = 138,650.49 × 30,102.54 - Step 4: Simplify right side
92,427.18x = 4,173,731,921.24 - Step 5: Solve for x
x = 4,173,731,921.24/92,427.18 - Step 6: Final answer
x = 45,156.98
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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.