Finding the Fourth Proportional to 98,135.60, 135,381.84 and 57,821.84
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Solution
The fourth proportional to 98,135.60, 135,381.84 and 57,821.84 is: 79,767.46
Step by Step Solution
- Step 1: Write the proportion equation
98,135.60 : 135,381.84 = 57,821.84 : x - Step 2: Convert to fraction form
98,135.60/135,381.84 = 57,821.84/x - Step 3: Cross multiply
98,135.60x = 135,381.84 × 57,821.84 - Step 4: Simplify right side
98,135.60x = 7,828,027,091.39 - Step 5: Solve for x
x = 7,828,027,091.39/98,135.60 - Step 6: Final answer
x = 79,767.46
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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.