Finding the Fourth Proportional to 102,961.08, 154,427.01 and 39,810.96
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Solution
The fourth proportional to 102,961.08, 154,427.01 and 39,810.96 is: 59,710.79
Step by Step Solution
- Step 1: Write the proportion equation
102,961.08 : 154,427.01 = 39,810.96 : x - Step 2: Convert to fraction form
102,961.08/154,427.01 = 39,810.96/x - Step 3: Cross multiply
102,961.08x = 154,427.01 × 39,810.96 - Step 4: Simplify right side
102,961.08x = 6,147,887,518.03 - Step 5: Solve for x
x = 6,147,887,518.03/102,961.08 - Step 6: Final answer
x = 59,710.79
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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.