Finding the Fourth Proportional to 76,977.48, 115,486.74 and 24,387.96
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Solution
The fourth proportional to 76,977.48, 115,486.74 and 24,387.96 is: 36,588.44
Step by Step Solution
- Step 1: Write the proportion equation
76,977.48 : 115,486.74 = 24,387.96 : x - Step 2: Convert to fraction form
76,977.48/115,486.74 = 24,387.96/x - Step 3: Cross multiply
76,977.48x = 115,486.74 × 24,387.96 - Step 4: Simplify right side
76,977.48x = 2,816,485,995.65 - Step 5: Solve for x
x = 2,816,485,995.65/76,977.48 - Step 6: Final answer
x = 36,588.44
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1.5x scale
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.