Finding the Fourth Proportional to 77,242.80, 115,882.70 and 32,239.13
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Solution
The fourth proportional to 77,242.80, 115,882.70 and 32,239.13 is: 48,366.42
Step by Step Solution
- Step 1: Write the proportion equation
77,242.80 : 115,882.70 = 32,239.13 : x - Step 2: Convert to fraction form
77,242.80/115,882.70 = 32,239.13/x - Step 3: Cross multiply
77,242.80x = 115,882.70 × 32,239.13 - Step 4: Simplify right side
77,242.80x = 3,735,957,430.05 - Step 5: Solve for x
x = 3,735,957,430.05/77,242.80 - Step 6: Final answer
x = 48,366.42
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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.