Finding the Fourth Proportional to 75,637.80, 113,456.70 and 75,637.80
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Solution
The fourth proportional to 75,637.80, 113,456.70 and 75,637.80 is: 113,456.70
Step by Step Solution
- Step 1: Write the proportion equation
75,637.80 : 113,456.70 = 75,637.80 : x - Step 2: Convert to fraction form
75,637.80/113,456.70 = 75,637.80/x - Step 3: Cross multiply
75,637.80x = 113,456.70 × 75,637.80 - Step 4: Simplify right side
75,637.80x = 8,581,615,183.26 - Step 5: Solve for x
x = 8,581,615,183.26/75,637.80 - Step 6: Final answer
x = 113,456.70
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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.