Finding the Fourth Proportional to 76,764.84, 115,138.14 and 26,841.12
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Solution
The fourth proportional to 76,764.84, 115,138.14 and 26,841.12 is: 40,258.49
Step by Step Solution
- Step 1: Write the proportion equation
76,764.84 : 115,138.14 = 26,841.12 : x - Step 2: Convert to fraction form
76,764.84/115,138.14 = 26,841.12/x - Step 3: Cross multiply
76,764.84x = 115,138.14 × 26,841.12 - Step 4: Simplify right side
76,764.84x = 3,090,436,632.32 - Step 5: Solve for x
x = 3,090,436,632.32/76,764.84 - Step 6: Final answer
x = 40,258.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.