Finding the Fourth Proportional to 77,261.74, 106,628.01 and 43,269.70
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Solution
The fourth proportional to 77,261.74, 106,628.01 and 43,269.70 is: 59,716.00
Step by Step Solution
- Step 1: Write the proportion equation
77,261.74 : 106,628.01 = 43,269.70 : x - Step 2: Convert to fraction form
77,261.74/106,628.01 = 43,269.70/x - Step 3: Cross multiply
77,261.74x = 106,628.01 × 43,269.70 - Step 4: Simplify right side
77,261.74x = 4,613,762,004.30 - Step 5: Solve for x
x = 4,613,762,004.30/77,261.74 - Step 6: Final answer
x = 59,716.00
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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.