Finding the Fourth Proportional to 98,209.44, 135,522.64 and 57,913.96
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Solution
The fourth proportional to 98,209.44, 135,522.64 and 57,913.96 is: 79,917.50
Step by Step Solution
- Step 1: Write the proportion equation
98,209.44 : 135,522.64 = 57,913.96 : x - Step 2: Convert to fraction form
98,209.44/135,522.64 = 57,913.96/x - Step 3: Cross multiply
98,209.44x = 135,522.64 × 57,913.96 - Step 4: Simplify right side
98,209.44x = 7,848,652,752.05 - Step 5: Solve for x
x = 7,848,652,752.05/98,209.44 - Step 6: Final answer
x = 79,917.50
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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.