Finding the Fourth Proportional to 77,692.68, 107,215.56 and 44,158.68
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Solution
The fourth proportional to 77,692.68, 107,215.56 and 44,158.68 is: 60,938.79
Step by Step Solution
- Step 1: Write the proportion equation
77,692.68 : 107,215.56 = 44,158.68 : x - Step 2: Convert to fraction form
77,692.68/107,215.56 = 44,158.68/x - Step 3: Cross multiply
77,692.68x = 107,215.56 × 44,158.68 - Step 4: Simplify right side
77,692.68x = 4,734,497,605.06 - Step 5: Solve for x
x = 4,734,497,605.06/77,692.68 - Step 6: Final answer
x = 60,938.79
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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.