Finding the Fourth Proportional to 97,912.75, 135,120.42 and 53,200.75
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Solution
The fourth proportional to 97,912.75, 135,120.42 and 53,200.75 is: 73,417.48
Step by Step Solution
- Step 1: Write the proportion equation
97,912.75 : 135,120.42 = 53,200.75 : x - Step 2: Convert to fraction form
97,912.75/135,120.42 = 53,200.75/x - Step 3: Cross multiply
97,912.75x = 135,120.42 × 53,200.75 - Step 4: Simplify right side
97,912.75x = 7,188,507,684.32 - Step 5: Solve for x
x = 7,188,507,684.32/97,912.75 - Step 6: Final answer
x = 73,417.48
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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.