Finding the Fourth Proportional to 90,692.65, 125,160.09 and 50,407.08
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Solution
The fourth proportional to 90,692.65, 125,160.09 and 50,407.08 is: 69,564.12
Step by Step Solution
- Step 1: Write the proportion equation
90,692.65 : 125,160.09 = 50,407.08 : x - Step 2: Convert to fraction form
90,692.65/125,160.09 = 50,407.08/x - Step 3: Cross multiply
90,692.65x = 125,160.09 × 50,407.08 - Step 4: Simplify right side
90,692.65x = 6,308,954,669.44 - Step 5: Solve for x
x = 6,308,954,669.44/90,692.65 - Step 6: Final answer
x = 69,564.12
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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.