Finding the Fourth Proportional to 87,966.64, 121,400.40 and 50,240.08
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Solution
The fourth proportional to 87,966.64, 121,400.40 and 50,240.08 is: 69,334.99
Step by Step Solution
- Step 1: Write the proportion equation
87,966.64 : 121,400.40 = 50,240.08 : x - Step 2: Convert to fraction form
87,966.64/121,400.40 = 50,240.08/x - Step 3: Cross multiply
87,966.64x = 121,400.40 × 50,240.08 - Step 4: Simplify right side
87,966.64x = 6,099,165,808.03 - Step 5: Solve for x
x = 6,099,165,808.03/87,966.64 - Step 6: Final answer
x = 69,334.99
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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.