Finding the Fourth Proportional to 83,699.30, 115,524.96 and 47,909.99
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Solution
The fourth proportional to 83,699.30, 115,524.96 and 47,909.99 is: 66,127.19
Step by Step Solution
- Step 1: Write the proportion equation
83,699.30 : 115,524.96 = 47,909.99 : x - Step 2: Convert to fraction form
83,699.30/115,524.96 = 47,909.99/x - Step 3: Cross multiply
83,699.30x = 115,524.96 × 47,909.99 - Step 4: Simplify right side
83,699.30x = 5,534,799,678.35 - Step 5: Solve for x
x = 5,534,799,678.35/83,699.30 - Step 6: Final answer
x = 66,127.19
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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.