Finding the Fourth Proportional to 92,775.92, 128,029.62 and 50,334.14
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Solution
The fourth proportional to 92,775.92, 128,029.62 and 50,334.14 is: 69,460.49
Step by Step Solution
- Step 1: Write the proportion equation
92,775.92 : 128,029.62 = 50,334.14 : x - Step 2: Convert to fraction form
92,775.92/128,029.62 = 50,334.14/x - Step 3: Cross multiply
92,775.92x = 128,029.62 × 50,334.14 - Step 4: Simplify right side
92,775.92x = 6,444,260,817.23 - Step 5: Solve for x
x = 6,444,260,817.23/92,775.92 - Step 6: Final answer
x = 69,460.49
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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.