Finding the Fourth Proportional to 89,247.61, 133,905.84 and 47,125.99
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Solution
The fourth proportional to 89,247.61, 133,905.84 and 47,125.99 is: 70,707.16
Step by Step Solution
- Step 1: Write the proportion equation
89,247.61 : 133,905.84 = 47,125.99 : x - Step 2: Convert to fraction form
89,247.61/133,905.84 = 47,125.99/x - Step 3: Cross multiply
89,247.61x = 133,905.84 × 47,125.99 - Step 4: Simplify right side
89,247.61x = 6,310,445,276.78 - Step 5: Solve for x
x = 6,310,445,276.78/89,247.61 - Step 6: Final answer
x = 70,707.16
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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.