Finding the Fourth Proportional to 75,631.02, 104,293.46 and 50,128.54
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Solution
The fourth proportional to 75,631.02, 104,293.46 and 50,128.54 is: 69,126.12
Step by Step Solution
- Step 1: Write the proportion equation
75,631.02 : 104,293.46 = 50,128.54 : x - Step 2: Convert to fraction form
75,631.02/104,293.46 = 50,128.54/x - Step 3: Cross multiply
75,631.02x = 104,293.46 × 50,128.54 - Step 4: Simplify right side
75,631.02x = 5,228,078,881.35 - Step 5: Solve for x
x = 5,228,078,881.35/75,631.02 - Step 6: Final answer
x = 69,126.12
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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.