Finding the Fourth Proportional to 71,296.08, 106,935.60 and 18,709.68
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Solution
The fourth proportional to 71,296.08, 106,935.60 and 18,709.68 is: 28,062.28
Step by Step Solution
- Step 1: Write the proportion equation
71,296.08 : 106,935.60 = 18,709.68 : x - Step 2: Convert to fraction form
71,296.08/106,935.60 = 18,709.68/x - Step 3: Cross multiply
71,296.08x = 106,935.60 × 18,709.68 - Step 4: Simplify right side
71,296.08x = 2,000,730,856.61 - Step 5: Solve for x
x = 2,000,730,856.61/71,296.08 - Step 6: Final answer
x = 28,062.28
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.