Finding the Fourth Proportional to 90,668.91, 136,026.44 and 53,260.62
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Solution
The fourth proportional to 90,668.91, 136,026.44 and 53,260.62 is: 79,904.48
Step by Step Solution
- Step 1: Write the proportion equation
90,668.91 : 136,026.44 = 53,260.62 : x - Step 2: Convert to fraction form
90,668.91/136,026.44 = 53,260.62/x - Step 3: Cross multiply
90,668.91x = 136,026.44 × 53,260.62 - Step 4: Simplify right side
90,668.91x = 7,244,852,530.79 - Step 5: Solve for x
x = 7,244,852,530.79/90,668.91 - Step 6: Final answer
x = 79,904.48
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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.