Finding the Fourth Proportional to 80,021.68, 110,420.51 and 44,209.56
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Solution
The fourth proportional to 80,021.68, 110,420.51 and 44,209.56 is: 61,003.99
Step by Step Solution
- Step 1: Write the proportion equation
80,021.68 : 110,420.51 = 44,209.56 : x - Step 2: Convert to fraction form
80,021.68/110,420.51 = 44,209.56/x - Step 3: Cross multiply
80,021.68x = 110,420.51 × 44,209.56 - Step 4: Simplify right side
80,021.68x = 4,881,641,388.93 - Step 5: Solve for x
x = 4,881,641,388.93/80,021.68 - Step 6: Final answer
x = 61,003.99
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1.5x scale
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.