Finding the Fourth Proportional to 77,756.63, 107,355.80 and 59,819.99
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Solution
The fourth proportional to 77,756.63, 107,355.80 and 59,819.99 is: 82,591.32
Step by Step Solution
- Step 1: Write the proportion equation
77,756.63 : 107,355.80 = 59,819.99 : x - Step 2: Convert to fraction form
77,756.63/107,355.80 = 59,819.99/x - Step 3: Cross multiply
77,756.63x = 107,355.80 × 59,819.99 - Step 4: Simplify right side
77,756.63x = 6,422,022,882.44 - Step 5: Solve for x
x = 6,422,022,882.44/77,756.63 - Step 6: Final answer
x = 82,591.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.