Finding the Fourth Proportional to 83,239.20, 124,858.80 and 48,268.80
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Solution
The fourth proportional to 83,239.20, 124,858.80 and 48,268.80 is: 72,403.20
Step by Step Solution
- Step 1: Write the proportion equation
83,239.20 : 124,858.80 = 48,268.80 : x - Step 2: Convert to fraction form
83,239.20/124,858.80 = 48,268.80/x - Step 3: Cross multiply
83,239.20x = 124,858.80 × 48,268.80 - Step 4: Simplify right side
83,239.20x = 6,026,784,445.44 - Step 5: Solve for x
x = 6,026,784,445.44/83,239.20 - Step 6: Final answer
x = 72,403.20
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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.