Finding the Fourth Proportional to 75,938.40, 113,896.80 and 26,020.80
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Solution
The fourth proportional to 75,938.40, 113,896.80 and 26,020.80 is: 39,027.50
Step by Step Solution
- Step 1: Write the proportion equation
75,938.40 : 113,896.80 = 26,020.80 : x - Step 2: Convert to fraction form
75,938.40/113,896.80 = 26,020.80/x - Step 3: Cross multiply
75,938.40x = 113,896.80 × 26,020.80 - Step 4: Simplify right side
75,938.40x = 2,963,685,853.44 - Step 5: Solve for x
x = 2,963,685,853.44/75,938.40 - Step 6: Final answer
x = 39,027.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.