Finding the Fourth Proportional to 75,921.73, 104,772.78 and 41,931.08
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Solution
The fourth proportional to 75,921.73, 104,772.78 and 41,931.08 is: 57,865.33
Step by Step Solution
- Step 1: Write the proportion equation
75,921.73 : 104,772.78 = 41,931.08 : x - Step 2: Convert to fraction form
75,921.73/104,772.78 = 41,931.08/x - Step 3: Cross multiply
75,921.73x = 104,772.78 × 41,931.08 - Step 4: Simplify right side
75,921.73x = 4,393,236,248.98 - Step 5: Solve for x
x = 4,393,236,248.98/75,921.73 - Step 6: Final answer
x = 57,865.33
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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.