Finding the Fourth Proportional to 87,779.04, 121,201.60 and 87,604.08
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Solution
The fourth proportional to 87,779.04, 121,201.60 and 87,604.08 is: 120,960.02
Step by Step Solution
- Step 1: Write the proportion equation
87,779.04 : 121,201.60 = 87,604.08 : x - Step 2: Convert to fraction form
87,779.04/121,201.60 = 87,604.08/x - Step 3: Cross multiply
87,779.04x = 121,201.60 × 87,604.08 - Step 4: Simplify right side
87,779.04x = 10,617,754,662.53 - Step 5: Solve for x
x = 10,617,754,662.53/87,779.04 - Step 6: Final answer
x = 120,960.02
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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.