Finding the Fourth Proportional to 77,027.63, 106,260.20 and 51,539.68
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Solution
The fourth proportional to 77,027.63, 106,260.20 and 51,539.68 is: 71,099.38
Step by Step Solution
- Step 1: Write the proportion equation
77,027.63 : 106,260.20 = 51,539.68 : x - Step 2: Convert to fraction form
77,027.63/106,260.20 = 51,539.68/x - Step 3: Cross multiply
77,027.63x = 106,260.20 × 51,539.68 - Step 4: Simplify right side
77,027.63x = 5,476,616,704.74 - Step 5: Solve for x
x = 5,476,616,704.74/77,027.63 - Step 6: Final answer
x = 71,099.38
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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.