Finding the Fourth Proportional to 105,563.84, 145,672.68 and 57,807.96
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Solution
The fourth proportional to 105,563.84, 145,672.68 and 57,807.96 is: 79,772.02
Step by Step Solution
- Step 1: Write the proportion equation
105,563.84 : 145,672.68 = 57,807.96 : x - Step 2: Convert to fraction form
105,563.84/145,672.68 = 57,807.96/x - Step 3: Cross multiply
105,563.84x = 145,672.68 × 57,807.96 - Step 4: Simplify right side
105,563.84x = 8,421,040,458.53 - Step 5: Solve for x
x = 8,421,040,458.53/105,563.84 - Step 6: Final answer
x = 79,772.02
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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.