Finding the Fourth Proportional to 98,464.68, 135,898.27 and 57,065.90
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Solution
The fourth proportional to 98,464.68, 135,898.27 and 57,065.90 is: 78,760.80
Step by Step Solution
- Step 1: Write the proportion equation
98,464.68 : 135,898.27 = 57,065.90 : x - Step 2: Convert to fraction form
98,464.68/135,898.27 = 57,065.90/x - Step 3: Cross multiply
98,464.68x = 135,898.27 × 57,065.90 - Step 4: Simplify right side
98,464.68x = 7,755,157,349.26 - Step 5: Solve for x
x = 7,755,157,349.26/98,464.68 - Step 6: Final answer
x = 78,760.80
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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.