Finding the Fourth Proportional to 72,865.55, 101,013.02 and 68,874.28
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Solution
The fourth proportional to 72,865.55, 101,013.02 and 68,874.28 is: 95,479.95
Step by Step Solution
- Step 1: Write the proportion equation
72,865.55 : 101,013.02 = 68,874.28 : x - Step 2: Convert to fraction form
72,865.55/101,013.02 = 68,874.28/x - Step 3: Cross multiply
72,865.55x = 101,013.02 × 68,874.28 - Step 4: Simplify right side
72,865.55x = 6,957,199,023.13 - Step 5: Solve for x
x = 6,957,199,023.13/72,865.55 - Step 6: Final answer
x = 95,479.95
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.