Finding the Fourth Proportional to 76,993.22, 106,214.10 and 48,298.70
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Solution
The fourth proportional to 76,993.22, 106,214.10 and 48,298.70 is: 66,629.28
Step by Step Solution
- Step 1: Write the proportion equation
76,993.22 : 106,214.10 = 48,298.70 : x - Step 2: Convert to fraction form
76,993.22/106,214.10 = 48,298.70/x - Step 3: Cross multiply
76,993.22x = 106,214.10 × 48,298.70 - Step 4: Simplify right side
76,993.22x = 5,130,002,951.67 - Step 5: Solve for x
x = 5,130,002,951.67/76,993.22 - Step 6: Final answer
x = 66,629.28
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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.