Finding the Fourth Proportional to 90,490.45, 124,876.91 and 52,771.99
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Solution
The fourth proportional to 90,490.45, 124,876.91 and 52,771.99 is: 72,825.39
Step by Step Solution
- Step 1: Write the proportion equation
90,490.45 : 124,876.91 = 52,771.99 : x - Step 2: Convert to fraction form
90,490.45/124,876.91 = 52,771.99/x - Step 3: Cross multiply
90,490.45x = 124,876.91 × 52,771.99 - Step 4: Simplify right side
90,490.45x = 6,590,002,157.51 - Step 5: Solve for x
x = 6,590,002,157.51/90,490.45 - Step 6: Final answer
x = 72,825.39
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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.