Finding the Fourth Proportional to 77,757.63, 107,357.18 and 59,820.99
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Solution
The fourth proportional to 77,757.63, 107,357.18 and 59,820.99 is: 82,592.70
Step by Step Solution
- Step 1: Write the proportion equation
77,757.63 : 107,357.18 = 59,820.99 : x - Step 2: Convert to fraction form
77,757.63/107,357.18 = 59,820.99/x - Step 3: Cross multiply
77,757.63x = 107,357.18 × 59,820.99 - Step 4: Simplify right side
77,757.63x = 6,422,212,791.21 - Step 5: Solve for x
x = 6,422,212,791.21/77,757.63 - Step 6: Final answer
x = 82,592.70
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1.5x scale
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.