Finding the Fourth Proportional to 76,221.36, 105,189.38 and 46,006.26
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Solution
The fourth proportional to 76,221.36, 105,189.38 and 46,006.26 is: 63,490.99
Step by Step Solution
- Step 1: Write the proportion equation
76,221.36 : 105,189.38 = 46,006.26 : x - Step 2: Convert to fraction form
76,221.36/105,189.38 = 46,006.26/x - Step 3: Cross multiply
76,221.36x = 105,189.38 × 46,006.26 - Step 4: Simplify right side
76,221.36x = 4,839,369,965.52 - Step 5: Solve for x
x = 4,839,369,965.52/76,221.36 - Step 6: Final answer
x = 63,490.99
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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.