Finding the Fourth Proportional to 98,216.75, 135,539.16 and 53,504.75
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Solution
The fourth proportional to 98,216.75, 135,539.16 and 53,504.75 is: 73,836.58
Step by Step Solution
- Step 1: Write the proportion equation
98,216.75 : 135,539.16 = 53,504.75 : x - Step 2: Convert to fraction form
98,216.75/135,539.16 = 53,504.75/x - Step 3: Cross multiply
98,216.75x = 135,539.16 × 53,504.75 - Step 4: Simplify right side
98,216.75x = 7,251,988,871.01 - Step 5: Solve for x
x = 7,251,988,871.01/98,216.75 - Step 6: Final answer
x = 73,836.58
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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.