Finding the Fourth Proportional to 83,927.28, 125,968.68 and 42,403.44
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Solution
The fourth proportional to 83,927.28, 125,968.68 and 42,403.44 is: 63,644.45
Step by Step Solution
- Step 1: Write the proportion equation
83,927.28 : 125,968.68 = 42,403.44 : x - Step 2: Convert to fraction form
83,927.28/125,968.68 = 42,403.44/x - Step 3: Cross multiply
83,927.28x = 125,968.68 × 42,403.44 - Step 4: Simplify right side
83,927.28x = 5,341,505,364.26 - Step 5: Solve for x
x = 5,341,505,364.26/83,927.28 - Step 6: Final answer
x = 63,644.45
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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.