Finding the Fourth Proportional to 75,829.08, 113,743.68 and 20,425.08
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Solution
The fourth proportional to 75,829.08, 113,743.68 and 20,425.08 is: 30,637.64
Step by Step Solution
- Step 1: Write the proportion equation
75,829.08 : 113,743.68 = 20,425.08 : x - Step 2: Convert to fraction form
75,829.08/113,743.68 = 20,425.08/x - Step 3: Cross multiply
75,829.08x = 113,743.68 × 20,425.08 - Step 4: Simplify right side
75,829.08x = 2,323,223,763.49 - Step 5: Solve for x
x = 2,323,223,763.49/75,829.08 - Step 6: Final answer
x = 30,637.64
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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.