Finding the Fourth Proportional to 83,473.28, 115,192.64 and 45,749.12
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Solution
The fourth proportional to 83,473.28, 115,192.64 and 45,749.12 is: 63,133.52
Step by Step Solution
- Step 1: Write the proportion equation
83,473.28 : 115,192.64 = 45,749.12 : x - Step 2: Convert to fraction form
83,473.28/115,192.64 = 45,749.12/x - Step 3: Cross multiply
83,473.28x = 115,192.64 × 45,749.12 - Step 4: Simplify right side
83,473.28x = 5,269,961,910.48 - Step 5: Solve for x
x = 5,269,961,910.48/83,473.28 - Step 6: Final answer
x = 63,133.52
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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.