Finding the Fourth Proportional to 98,408.59, 135,799.94 and 58,135.32
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Solution
The fourth proportional to 98,408.59, 135,799.94 and 58,135.32 is: 80,224.43
Step by Step Solution
- Step 1: Write the proportion equation
98,408.59 : 135,799.94 = 58,135.32 : x - Step 2: Convert to fraction form
98,408.59/135,799.94 = 58,135.32/x - Step 3: Cross multiply
98,408.59x = 135,799.94 × 58,135.32 - Step 4: Simplify right side
98,408.59x = 7,894,773,113.22 - Step 5: Solve for x
x = 7,894,773,113.22/98,408.59 - Step 6: Final answer
x = 80,224.43
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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.