Finding the Fourth Proportional to 98,542.53, 135,988.83 and 56,101.08
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Solution
The fourth proportional to 98,542.53, 135,988.83 and 56,101.08 is: 77,419.57
Step by Step Solution
- Step 1: Write the proportion equation
98,542.53 : 135,988.83 = 56,101.08 : x - Step 2: Convert to fraction form
98,542.53/135,988.83 = 56,101.08/x - Step 3: Cross multiply
98,542.53x = 135,988.83 × 56,101.08 - Step 4: Simplify right side
98,542.53x = 7,629,120,230.94 - Step 5: Solve for x
x = 7,629,120,230.94/98,542.53 - Step 6: Final answer
x = 77,419.57
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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.