Finding the Fourth Proportional to 89,245.86, 133,881.34 and 26,070.62
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Solution
The fourth proportional to 89,245.86, 133,881.34 and 26,070.62 is: 39,109.60
Step by Step Solution
- Step 1: Write the proportion equation
89,245.86 : 133,881.34 = 26,070.62 : x - Step 2: Convert to fraction form
89,245.86/133,881.34 = 26,070.62/x - Step 3: Cross multiply
89,245.86x = 133,881.34 × 26,070.62 - Step 4: Simplify right side
89,245.86x = 3,490,369,540.23 - Step 5: Solve for x
x = 3,490,369,540.23/89,245.86 - Step 6: Final answer
x = 39,109.60
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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.