Finding the Fourth Proportional to 76,735.26, 115,029.06 and 39,313.02
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Solution
The fourth proportional to 76,735.26, 115,029.06 and 39,313.02 is: 58,931.71
Step by Step Solution
- Step 1: Write the proportion equation
76,735.26 : 115,029.06 = 39,313.02 : x - Step 2: Convert to fraction form
76,735.26/115,029.06 = 39,313.02/x - Step 3: Cross multiply
76,735.26x = 115,029.06 × 39,313.02 - Step 4: Simplify right side
76,735.26x = 4,522,139,736.36 - Step 5: Solve for x
x = 4,522,139,736.36/76,735.26 - Step 6: Final answer
x = 58,931.71
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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.