Finding the Fourth Proportional to 85,613.50, 118,106.82 and 55,408.54
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Solution
The fourth proportional to 85,613.50, 118,106.82 and 55,408.54 is: 76,438.02
Step by Step Solution
- Step 1: Write the proportion equation
85,613.50 : 118,106.82 = 55,408.54 : x - Step 2: Convert to fraction form
85,613.50/118,106.82 = 55,408.54/x - Step 3: Cross multiply
85,613.50x = 118,106.82 × 55,408.54 - Step 4: Simplify right side
85,613.50x = 6,544,126,460.24 - Step 5: Solve for x
x = 6,544,126,460.24/85,613.50 - Step 6: Final answer
x = 76,438.02
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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.