Finding the Fourth Proportional to 98,201.61, 135,522.14 and 55,764.09
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Solution
The fourth proportional to 98,201.61, 135,522.14 and 55,764.09 is: 76,956.67
Step by Step Solution
- Step 1: Write the proportion equation
98,201.61 : 135,522.14 = 55,764.09 : x - Step 2: Convert to fraction form
98,201.61/135,522.14 = 55,764.09/x - Step 3: Cross multiply
98,201.61x = 135,522.14 × 55,764.09 - Step 4: Simplify right side
98,201.61x = 7,557,268,533.13 - Step 5: Solve for x
x = 7,557,268,533.13/98,201.61 - Step 6: Final answer
x = 76,956.67
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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.