Finding the Fourth Proportional to 97,637.20, 146,455.80 and 38,453.20
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Solution
The fourth proportional to 97,637.20, 146,455.80 and 38,453.20 is: 57,679.80
Step by Step Solution
- Step 1: Write the proportion equation
97,637.20 : 146,455.80 = 38,453.20 : x - Step 2: Convert to fraction form
97,637.20/146,455.80 = 38,453.20/x - Step 3: Cross multiply
97,637.20x = 146,455.80 × 38,453.20 - Step 4: Simplify right side
97,637.20x = 5,631,694,168.56 - Step 5: Solve for x
x = 5,631,694,168.56/97,637.20 - Step 6: Final answer
x = 57,679.80
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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.