Finding the Fourth Proportional to 77,217.36, 106,548.62 and 43,224.08
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Solution
The fourth proportional to 77,217.36, 106,548.62 and 43,224.08 is: 59,642.88
Step by Step Solution
- Step 1: Write the proportion equation
77,217.36 : 106,548.62 = 43,224.08 : x - Step 2: Convert to fraction form
77,217.36/106,548.62 = 43,224.08/x - Step 3: Cross multiply
77,217.36x = 106,548.62 × 43,224.08 - Step 4: Simplify right side
77,217.36x = 4,605,466,074.77 - Step 5: Solve for x
x = 4,605,466,074.77/77,217.36 - Step 6: Final answer
x = 59,642.88
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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.