Finding the Fourth Proportional to 97,728.85, 134,880.29 and 61,922.19
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Solution
The fourth proportional to 97,728.85, 134,880.29 and 61,922.19 is: 85,461.80
Step by Step Solution
- Step 1: Write the proportion equation
97,728.85 : 134,880.29 = 61,922.19 : x - Step 2: Convert to fraction form
97,728.85/134,880.29 = 61,922.19/x - Step 3: Cross multiply
97,728.85x = 134,880.29 × 61,922.19 - Step 4: Simplify right side
97,728.85x = 8,352,082,944.64 - Step 5: Solve for x
x = 8,352,082,944.64/97,728.85 - Step 6: Final answer
x = 85,461.80
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1.5x scale
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.