Finding the Fourth Proportional to 72,748.08, 109,102.14 and 51,625.44
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Solution
The fourth proportional to 72,748.08, 109,102.14 and 51,625.44 is: 77,423.98
Step by Step Solution
- Step 1: Write the proportion equation
72,748.08 : 109,102.14 = 51,625.44 : x - Step 2: Convert to fraction form
72,748.08/109,102.14 = 51,625.44/x - Step 3: Cross multiply
72,748.08x = 109,102.14 × 51,625.44 - Step 4: Simplify right side
72,748.08x = 5,632,445,982.44 - Step 5: Solve for x
x = 5,632,445,982.44/72,748.08 - Step 6: Final answer
x = 77,423.98
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1.5x scale
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.