Finding the Fourth Proportional to 97,718.37, 134,845.11 and 54,690.62
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Solution
The fourth proportional to 97,718.37, 134,845.11 and 54,690.62 is: 75,469.56
Step by Step Solution
- Step 1: Write the proportion equation
97,718.37 : 134,845.11 = 54,690.62 : x - Step 2: Convert to fraction form
97,718.37/134,845.11 = 54,690.62/x - Step 3: Cross multiply
97,718.37x = 134,845.11 × 54,690.62 - Step 4: Simplify right side
97,718.37x = 7,374,762,754.15 - Step 5: Solve for x
x = 7,374,762,754.15/97,718.37 - Step 6: Final answer
x = 75,469.56
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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.