Finding the Fourth Proportional to 76,035.16, 104,919.36 and 42,039.06
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Solution
The fourth proportional to 76,035.16, 104,919.36 and 42,039.06 is: 58,008.84
Step by Step Solution
- Step 1: Write the proportion equation
76,035.16 : 104,919.36 = 42,039.06 : x - Step 2: Convert to fraction form
76,035.16/104,919.36 = 42,039.06/x - Step 3: Cross multiply
76,035.16x = 104,919.36 × 42,039.06 - Step 4: Simplify right side
76,035.16x = 4,410,711,270.20 - Step 5: Solve for x
x = 4,410,711,270.20/76,035.16 - Step 6: Final answer
x = 58,008.84
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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.