Finding the Fourth Proportional to 112,776.68, 169,237.92 and 53,679.08
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Solution
The fourth proportional to 112,776.68, 169,237.92 and 53,679.08 is: 80,553.32
Step by Step Solution
- Step 1: Write the proportion equation
112,776.68 : 169,237.92 = 53,679.08 : x - Step 2: Convert to fraction form
112,776.68/169,237.92 = 53,679.08/x - Step 3: Cross multiply
112,776.68x = 169,237.92 × 53,679.08 - Step 4: Simplify right side
112,776.68x = 9,084,535,846.71 - Step 5: Solve for x
x = 9,084,535,846.71/112,776.68 - Step 6: Final answer
x = 80,553.32
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1.5x scale
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.