Finding the Fourth Proportional to 83,756.58, 115,582.04 and 47,944.32
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Solution
The fourth proportional to 83,756.58, 115,582.04 and 47,944.32 is: 66,161.99
Step by Step Solution
- Step 1: Write the proportion equation
83,756.58 : 115,582.04 = 47,944.32 : x - Step 2: Convert to fraction form
83,756.58/115,582.04 = 47,944.32/x - Step 3: Cross multiply
83,756.58x = 115,582.04 × 47,944.32 - Step 4: Simplify right side
83,756.58x = 5,541,502,312.01 - Step 5: Solve for x
x = 5,541,502,312.01/83,756.58 - Step 6: Final answer
x = 66,161.99
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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.