Finding the Fourth Proportional to 76,765.84, 115,139.64 and 26,842.12
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Solution
The fourth proportional to 76,765.84, 115,139.64 and 26,842.12 is: 40,259.99
Step by Step Solution
- Step 1: Write the proportion equation
76,765.84 : 115,139.64 = 26,842.12 : x - Step 2: Convert to fraction form
76,765.84/115,139.64 = 26,842.12/x - Step 3: Cross multiply
76,765.84x = 115,139.64 × 26,842.12 - Step 4: Simplify right side
76,765.84x = 3,090,592,033.64 - Step 5: Solve for x
x = 3,090,592,033.64/76,765.84 - Step 6: Final answer
x = 40,259.99
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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.