Finding the Fourth Proportional to 76,881.24, 106,099.26 and 48,576.60
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Solution
The fourth proportional to 76,881.24, 106,099.26 and 48,576.60 is: 67,037.70
Step by Step Solution
- Step 1: Write the proportion equation
76,881.24 : 106,099.26 = 48,576.60 : x - Step 2: Convert to fraction form
76,881.24/106,099.26 = 48,576.60/x - Step 3: Cross multiply
76,881.24x = 106,099.26 × 48,576.60 - Step 4: Simplify right side
76,881.24x = 5,153,941,313.32 - Step 5: Solve for x
x = 5,153,941,313.32/76,881.24 - Step 6: Final answer
x = 67,037.70
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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.