Finding the Fourth Proportional to 81,400.08, 122,075.20 and 48,110.96
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Solution
The fourth proportional to 81,400.08, 122,075.20 and 48,110.96 is: 72,151.71
Step by Step Solution
- Step 1: Write the proportion equation
81,400.08 : 122,075.20 = 48,110.96 : x - Step 2: Convert to fraction form
81,400.08/122,075.20 = 48,110.96/x - Step 3: Cross multiply
81,400.08x = 122,075.20 × 48,110.96 - Step 4: Simplify right side
81,400.08x = 5,873,155,064.19 - Step 5: Solve for x
x = 5,873,155,064.19/81,400.08 - Step 6: Final answer
x = 72,151.71
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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.