Finding the Fourth Proportional to 87,992.88, 121,430.76 and 47,706.84
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Solution
The fourth proportional to 87,992.88, 121,430.76 and 47,706.84 is: 65,835.76
Step by Step Solution
- Step 1: Write the proportion equation
87,992.88 : 121,430.76 = 47,706.84 : x - Step 2: Convert to fraction form
87,992.88/121,430.76 = 47,706.84/x - Step 3: Cross multiply
87,992.88x = 121,430.76 × 47,706.84 - Step 4: Simplify right side
87,992.88x = 5,793,077,838.40 - Step 5: Solve for x
x = 5,793,077,838.40/87,992.88 - Step 6: Final answer
x = 65,835.76
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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.