Finding the Fourth Proportional to 76,930.84, 115,444.86 and 30,182.68
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Solution
The fourth proportional to 76,930.84, 115,444.86 and 30,182.68 is: 45,293.09
Step by Step Solution
- Step 1: Write the proportion equation
76,930.84 : 115,444.86 = 30,182.68 : x - Step 2: Convert to fraction form
76,930.84/115,444.86 = 30,182.68/x - Step 3: Cross multiply
76,930.84x = 115,444.86 × 30,182.68 - Step 4: Simplify right side
76,930.84x = 3,484,435,267.02 - Step 5: Solve for x
x = 3,484,435,267.02/76,930.84 - Step 6: Final answer
x = 45,293.09
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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.