Finding the Fourth Proportional to 83,344.16, 115,039.08 and 47,553.68
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Solution
The fourth proportional to 83,344.16, 115,039.08 and 47,553.68 is: 65,637.85
Step by Step Solution
- Step 1: Write the proportion equation
83,344.16 : 115,039.08 = 47,553.68 : x - Step 2: Convert to fraction form
83,344.16/115,039.08 = 47,553.68/x - Step 3: Cross multiply
83,344.16x = 115,039.08 × 47,553.68 - Step 4: Simplify right side
83,344.16x = 5,470,531,597.81 - Step 5: Solve for x
x = 5,470,531,597.81/83,344.16 - Step 6: Final answer
x = 65,637.85
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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.