Finding the Fourth Proportional to 76,493.02, 105,598.74 and 47,828.62
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Solution
The fourth proportional to 76,493.02, 105,598.74 and 47,828.62 is: 66,027.49
Step by Step Solution
- Step 1: Write the proportion equation
76,493.02 : 105,598.74 = 47,828.62 : x - Step 2: Convert to fraction form
76,493.02/105,598.74 = 47,828.62/x - Step 3: Cross multiply
76,493.02x = 105,598.74 × 47,828.62 - Step 4: Simplify right side
76,493.02x = 5,050,642,007.94 - Step 5: Solve for x
x = 5,050,642,007.94/76,493.02 - Step 6: Final answer
x = 66,027.49
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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.