Finding the Fourth Proportional to 77,012.36, 106,272.06 and 44,744.12
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Solution
The fourth proportional to 77,012.36, 106,272.06 and 44,744.12 is: 61,743.98
Step by Step Solution
- Step 1: Write the proportion equation
77,012.36 : 106,272.06 = 44,744.12 : x - Step 2: Convert to fraction form
77,012.36/106,272.06 = 44,744.12/x - Step 3: Cross multiply
77,012.36x = 106,272.06 × 44,744.12 - Step 4: Simplify right side
77,012.36x = 4,755,049,805.29 - Step 5: Solve for x
x = 4,755,049,805.29/77,012.36 - Step 6: Final answer
x = 61,743.98
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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.