Finding the Fourth Proportional to 98,563.76, 136,018.05 and 53,241.75
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Solution
The fourth proportional to 98,563.76, 136,018.05 and 53,241.75 is: 73,473.65
Step by Step Solution
- Step 1: Write the proportion equation
98,563.76 : 136,018.05 = 53,241.75 : x - Step 2: Convert to fraction form
98,563.76/136,018.05 = 53,241.75/x - Step 3: Cross multiply
98,563.76x = 136,018.05 × 53,241.75 - Step 4: Simplify right side
98,563.76x = 7,241,839,013.59 - Step 5: Solve for x
x = 7,241,839,013.59/98,563.76 - Step 6: Final answer
x = 73,473.65
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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.