Finding the Fourth Proportional to 90,190.08, 124,460.39 and 49,354.05
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Solution
The fourth proportional to 90,190.08, 124,460.39 and 49,354.05 is: 68,107.53
Step by Step Solution
- Step 1: Write the proportion equation
90,190.08 : 124,460.39 = 49,354.05 : x - Step 2: Convert to fraction form
90,190.08/124,460.39 = 49,354.05/x - Step 3: Cross multiply
90,190.08x = 124,460.39 × 49,354.05 - Step 4: Simplify right side
90,190.08x = 6,142,623,782.66 - Step 5: Solve for x
x = 6,142,623,782.66/90,190.08 - Step 6: Final answer
x = 68,107.53
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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.