Finding the Fourth Proportional to 83,128.20, 124,692.66 and 23,965.08
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Solution
The fourth proportional to 83,128.20, 124,692.66 and 23,965.08 is: 35,947.72
Step by Step Solution
- Step 1: Write the proportion equation
83,128.20 : 124,692.66 = 23,965.08 : x - Step 2: Convert to fraction form
83,128.20/124,692.66 = 23,965.08/x - Step 3: Cross multiply
83,128.20x = 124,692.66 × 23,965.08 - Step 4: Simplify right side
83,128.20x = 2,988,269,572.31 - Step 5: Solve for x
x = 2,988,269,572.31/83,128.20 - Step 6: Final answer
x = 35,947.72
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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.