Finding the Fourth Proportional to 68,709.08, 102,856.14 and 62,138.36
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Solution
The fourth proportional to 68,709.08, 102,856.14 and 62,138.36 is: 93,019.90
Step by Step Solution
- Step 1: Write the proportion equation
68,709.08 : 102,856.14 = 62,138.36 : x - Step 2: Convert to fraction form
68,709.08/102,856.14 = 62,138.36/x - Step 3: Cross multiply
68,709.08x = 102,856.14 × 62,138.36 - Step 4: Simplify right side
68,709.08x = 6,391,311,855.53 - Step 5: Solve for x
x = 6,391,311,855.53/68,709.08 - Step 6: Final answer
x = 93,019.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.