Finding the Fourth Proportional to 77,027.12, 115,544.80 and 21,627.44
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Solution
The fourth proportional to 77,027.12, 115,544.80 and 21,627.44 is: 32,442.32
Step by Step Solution
- Step 1: Write the proportion equation
77,027.12 : 115,544.80 = 21,627.44 : x - Step 2: Convert to fraction form
77,027.12/115,544.80 = 21,627.44/x - Step 3: Cross multiply
77,027.12x = 115,544.80 × 21,627.44 - Step 4: Simplify right side
77,027.12x = 2,498,938,229.31 - Step 5: Solve for x
x = 2,498,938,229.31/77,027.12 - Step 6: Final answer
x = 32,442.32
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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.