Finding the Fourth Proportional to 87,952.09, 121,379.95 and 53,510.26
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Solution
The fourth proportional to 87,952.09, 121,379.95 and 53,510.26 is: 73,847.85
Step by Step Solution
- Step 1: Write the proportion equation
87,952.09 : 121,379.95 = 53,510.26 : x - Step 2: Convert to fraction form
87,952.09/121,379.95 = 53,510.26/x - Step 3: Cross multiply
87,952.09x = 121,379.95 × 53,510.26 - Step 4: Simplify right side
87,952.09x = 6,495,072,446.72 - Step 5: Solve for x
x = 6,495,072,446.72/87,952.09 - Step 6: Final answer
x = 73,847.85
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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.