Finding the Fourth Proportional to 88,829.21, 122,579.09 and 48,543.28
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Solution
The fourth proportional to 88,829.21, 122,579.09 and 48,543.28 is: 66,986.87
Step by Step Solution
- Step 1: Write the proportion equation
88,829.21 : 122,579.09 = 48,543.28 : x - Step 2: Convert to fraction form
88,829.21/122,579.09 = 48,543.28/x - Step 3: Cross multiply
88,829.21x = 122,579.09 × 48,543.28 - Step 4: Simplify right side
88,829.21x = 5,950,391,088.02 - Step 5: Solve for x
x = 5,950,391,088.02/88,829.21 - Step 6: Final answer
x = 66,986.87
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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.