Finding the Fourth Proportional to 73,955.07, 102,057.99 and 40,421.07
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Solution
The fourth proportional to 73,955.07, 102,057.99 and 40,421.07 is: 55,781.07
Step by Step Solution
- Step 1: Write the proportion equation
73,955.07 : 102,057.99 = 40,421.07 : x - Step 2: Convert to fraction form
73,955.07/102,057.99 = 40,421.07/x - Step 3: Cross multiply
73,955.07x = 102,057.99 × 40,421.07 - Step 4: Simplify right side
73,955.07x = 4,125,293,157.85 - Step 5: Solve for x
x = 4,125,293,157.85/73,955.07 - Step 6: Final answer
x = 55,781.07
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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.