Finding the Fourth Proportional to 75,635.68, 113,318.16 and 42,316.96
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Solution
The fourth proportional to 75,635.68, 113,318.16 and 42,316.96 is: 63,399.71
Step by Step Solution
- Step 1: Write the proportion equation
75,635.68 : 113,318.16 = 42,316.96 : x - Step 2: Convert to fraction form
75,635.68/113,318.16 = 42,316.96/x - Step 3: Cross multiply
75,635.68x = 113,318.16 × 42,316.96 - Step 4: Simplify right side
75,635.68x = 4,795,280,043.99 - Step 5: Solve for x
x = 4,795,280,043.99/75,635.68 - Step 6: Final answer
x = 63,399.71
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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.