Finding the Fourth Proportional to 75,220.56, 103,851.63 and 48,409.76
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Solution
The fourth proportional to 75,220.56, 103,851.63 and 48,409.76 is: 66,835.88
Step by Step Solution
- Step 1: Write the proportion equation
75,220.56 : 103,851.63 = 48,409.76 : x - Step 2: Convert to fraction form
75,220.56/103,851.63 = 48,409.76/x - Step 3: Cross multiply
75,220.56x = 103,851.63 × 48,409.76 - Step 4: Simplify right side
75,220.56x = 5,027,431,964.65 - Step 5: Solve for x
x = 5,027,431,964.65/75,220.56 - Step 6: Final answer
x = 66,835.88
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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.