Finding the Fourth Proportional to 75,621.62, 104,358.12 and 42,087.62
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Solution
The fourth proportional to 75,621.62, 104,358.12 and 42,087.62 is: 58,081.07
Step by Step Solution
- Step 1: Write the proportion equation
75,621.62 : 104,358.12 = 42,087.62 : x - Step 2: Convert to fraction form
75,621.62/104,358.12 = 42,087.62/x - Step 3: Cross multiply
75,621.62x = 104,358.12 × 42,087.62 - Step 4: Simplify right side
75,621.62x = 4,392,184,898.47 - Step 5: Solve for x
x = 4,392,184,898.47/75,621.62 - Step 6: Final answer
x = 58,081.07
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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.