Finding the Fourth Proportional to 76,220.76, 105,197.34 and 44,408.28
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Solution
The fourth proportional to 76,220.76, 105,197.34 and 44,408.28 is: 61,290.82
Step by Step Solution
- Step 1: Write the proportion equation
76,220.76 : 105,197.34 = 44,408.28 : x - Step 2: Convert to fraction form
76,220.76/105,197.34 = 44,408.28/x - Step 3: Cross multiply
76,220.76x = 105,197.34 × 44,408.28 - Step 4: Simplify right side
76,220.76x = 4,671,632,929.98 - Step 5: Solve for x
x = 4,671,632,929.98/76,220.76 - Step 6: Final answer
x = 61,290.82
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1.5x scale
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.