Finding the Fourth Proportional to 97,707.20, 134,826.39 and 54,684.12
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Solution
The fourth proportional to 97,707.20, 134,826.39 and 54,684.12 is: 75,458.75
Step by Step Solution
- Step 1: Write the proportion equation
97,707.20 : 134,826.39 = 54,684.12 : x - Step 2: Convert to fraction form
97,707.20/134,826.39 = 54,684.12/x - Step 3: Cross multiply
97,707.20x = 134,826.39 × 54,684.12 - Step 4: Simplify right side
97,707.20x = 7,372,862,995.53 - Step 5: Solve for x
x = 7,372,862,995.53/97,707.20 - Step 6: Final answer
x = 75,458.75
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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.