Finding the Fourth Proportional to 97,769.12, 134,921.38 and 53,057.12
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Solution
The fourth proportional to 97,769.12, 134,921.38 and 53,057.12 is: 73,218.82
Step by Step Solution
- Step 1: Write the proportion equation
97,769.12 : 134,921.38 = 53,057.12 : x - Step 2: Convert to fraction form
97,769.12/134,921.38 = 53,057.12/x - Step 3: Cross multiply
97,769.12x = 134,921.38 × 53,057.12 - Step 4: Simplify right side
97,769.12x = 7,158,539,849.23 - Step 5: Solve for x
x = 7,158,539,849.23/97,769.12 - Step 6: Final answer
x = 73,218.82
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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.