Finding the Fourth Proportional to 76,760.98, 115,156.99 and 32,387.84
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Solution
The fourth proportional to 76,760.98, 115,156.99 and 32,387.84 is: 48,588.31
Step by Step Solution
- Step 1: Write the proportion equation
76,760.98 : 115,156.99 = 32,387.84 : x - Step 2: Convert to fraction form
76,760.98/115,156.99 = 32,387.84/x - Step 3: Cross multiply
76,760.98x = 115,156.99 × 32,387.84 - Step 4: Simplify right side
76,760.98x = 3,729,686,167.00 - Step 5: Solve for x
x = 3,729,686,167.00/76,760.98 - Step 6: Final answer
x = 48,588.31
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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.