Finding the Fourth Proportional to 77,082.98, 115,539.56 and 50,417.99
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Solution
The fourth proportional to 77,082.98, 115,539.56 and 50,417.99 is: 75,571.44
Step by Step Solution
- Step 1: Write the proportion equation
77,082.98 : 115,539.56 = 50,417.99 : x - Step 2: Convert to fraction form
77,082.98/115,539.56 = 50,417.99/x - Step 3: Cross multiply
77,082.98x = 115,539.56 × 50,417.99 - Step 4: Simplify right side
77,082.98x = 5,825,271,802.99 - Step 5: Solve for x
x = 5,825,271,802.99/77,082.98 - Step 6: Final answer
x = 75,571.44
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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.