Finding the Fourth Proportional to 75,536.80, 113,305.20 and 70,871.20
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Solution
The fourth proportional to 75,536.80, 113,305.20 and 70,871.20 is: 106,306.80
Step by Step Solution
- Step 1: Write the proportion equation
75,536.80 : 113,305.20 = 70,871.20 : x - Step 2: Convert to fraction form
75,536.80/113,305.20 = 70,871.20/x - Step 3: Cross multiply
75,536.80x = 113,305.20 × 70,871.20 - Step 4: Simplify right side
75,536.80x = 8,030,075,490.24 - Step 5: Solve for x
x = 8,030,075,490.24/75,536.80 - Step 6: Final answer
x = 106,306.80
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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.