Finding the Fourth Proportional to 75,609.08, 104,341.20 and 42,075.08
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Solution
The fourth proportional to 75,609.08, 104,341.20 and 42,075.08 is: 58,063.98
Step by Step Solution
- Step 1: Write the proportion equation
75,609.08 : 104,341.20 = 42,075.08 : x - Step 2: Convert to fraction form
75,609.08/104,341.20 = 42,075.08/x - Step 3: Cross multiply
75,609.08x = 104,341.20 × 42,075.08 - Step 4: Simplify right side
75,609.08x = 4,390,164,337.30 - Step 5: Solve for x
x = 4,390,164,337.30/75,609.08 - Step 6: Final answer
x = 58,063.98
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1.5x scale
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.