Finding the Fourth Proportional to 79,801.13, 119,837.28 and 53,317.31
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Solution
The fourth proportional to 79,801.13, 119,837.28 and 53,317.31 is: 80,066.55
Step by Step Solution
- Step 1: Write the proportion equation
79,801.13 : 119,837.28 = 53,317.31 : x - Step 2: Convert to fraction form
79,801.13/119,837.28 = 53,317.31/x - Step 3: Cross multiply
79,801.13x = 119,837.28 × 53,317.31 - Step 4: Simplify right side
79,801.13x = 6,389,400,808.13 - Step 5: Solve for x
x = 6,389,400,808.13/79,801.13 - Step 6: Final answer
x = 80,066.55
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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.